[{"related_material":{"record":[{"id":"19073","relation":"part_of_dissertation","status":"public"},{"id":"21870","relation":"part_of_dissertation","status":"public"}]},"month":"05","status":"public","OA_place":"publisher","author":[{"last_name":"Werner","full_name":"Werner, Thomas","id":"1fcd8497-dba3-11ea-a45e-c6fbd715f7c7","first_name":"Thomas","orcid":"0009-0001-2346-5236"}],"project":[{"grant_number":"101089099","_id":"bdadfa0d-d553-11ed-ba76-fb85edbd456a","name":"Cavity Quantum Electro Optics: Microwave photonics with nonclassical states"},{"name":"Quantum Local Area Networks with Superconducting Qubits","call_identifier":"H2020","grant_number":"899354","_id":"9B868D20-BA93-11EA-9121-9846C619BF3A"},{"_id":"26336814-B435-11E9-9278-68D0E5697425","call_identifier":"H2020","grant_number":"758053","name":"A Fiber Optic Transceiver for Superconducting Qubits"},{"grant_number":"101248662","_id":"5b807754-ab3d-11f0-914f-ff8c34502cc9","name":"Integrated optical coupling for low loss electro-optic interconnects"},{"_id":"91aaf765-16d5-11f0-9cad-a8e7e44cccb7","grant_number":"101187231","name":"Cavity-Integrated Electro-Optics: Measuring, Converting and Manipulating Microwaves with Light"},{"grant_number":"F07105","_id":"bdb108fd-d553-11ed-ba76-83dc74a9864f","name":"QUANTUM INFORMATION SYSTEMS BEYOND CLASSICAL CAPABILITIES / P5- Integration of Superconducting Quantum Circuits"},{"grant_number":"101080139","_id":"bdb7cfc1-d553-11ed-ba76-d2eaab167738","name":"Open Superconducting Quantum Computers (OpenSuperQPlus)"},{"name":"NOMIS Fellowship Program","_id":"9B861AAC-BA93-11EA-9121-9846C619BF3A"}],"supervisor":[{"orcid":"0000-0001-8112-028X","first_name":"Johannes M","full_name":"Fink, Johannes M","id":"4B591CBA-F248-11E8-B48F-1D18A9856A87","last_name":"Fink"}],"publication_status":"published","_id":"21863","file_date_updated":"2026-05-15T15:54:06Z","page":"97","file":[{"file_id":"21879","date_updated":"2026-05-15T15:53:57Z","date_created":"2026-05-15T15:53:57Z","file_name":"2026_Werner_Thomas_Thesis.pdf","file_size":9330516,"access_level":"open_access","checksum":"a5b4d8dba83f96e955a3625c0eebee98","creator":"twerner","content_type":"application/pdf","relation":"main_file"},{"date_updated":"2026-05-15T15:54:06Z","file_id":"21880","file_name":"2026_Werner_Thomas_Thesis.zip","date_created":"2026-05-15T15:54:06Z","file_size":9370704,"access_level":"closed","creator":"twerner","checksum":"b41282beaacfb32472769b9e3b1758d8","content_type":"application/x-zip-compressed","relation":"source_file"}],"license":"https://creativecommons.org/licenses/by/4.0/","title":"Interfacing superconducting qubits with optical photons","corr_author":"1","year":"2026","publisher":"Institute of Science and Technology Austria","doi":"10.15479/AT-ISTA-21863","acknowledged_ssus":[{"_id":"M-Shop"},{"_id":"NanoFab"},{"_id":"LifeSc"},{"_id":"SSU"}],"user_id":"8b945eb4-e2f2-11eb-945a-df72226e66a9","ddc":["530","537","539"],"language":[{"iso":"eng"}],"department":[{"_id":"GradSch"},{"_id":"JoFi"}],"date_published":"2026-05-12T00:00:00Z","keyword":["Superconducting qubits","Quantum optics","Single photons and quantum effects","Nonlinear optics"],"degree_awarded":"PhD","has_accepted_license":"1","alternative_title":["ISTA Thesis"],"ec_funded":1,"day":"12","article_processing_charge":"No","acknowledgement":"The author of this work was supported by the European Research Council under grant no.\r\n101089099 (ERC CoG cQEO) and the European Union’s Horizon 2020 research and innovation\r\nprogram under grant no. 899354 (FETopen SuperQuLAN).\r\nThis work was also supported by the European Research Council under grant nos. 758053\r\n(ERC StG QUNNECT), 101248662 (ERC POC CoupledEOT), and the European Innovation\r\nCouncil no. 101187231 (PathfinderOpen CIELO). This research was funded in whole or in part\r\nby the Austrian Science Fund (FWF) [10.55776/F71]. For open access purposes, the author\r\nhas applied a CC BY public copyright license to any author accepted manuscript version arising\r\nfrom this submission.\r\niii\r\nMy co-authors in the works mentioned later acknowledge generous support from the ISTFELLOW program, the NOMIS-ISTA fellowship, the Horizon Europe Program HORIZONCL4-2022-QUANTUM-01-SGA via Project No. 101113946 OpenSuperQPlus100 and a DOC fellowship of the Austrian Academy of Sciences at IST Austria.\r\n","citation":{"ama":"Werner T. Interfacing superconducting qubits with optical photons. 2026. doi:<a href=\"https://doi.org/10.15479/AT-ISTA-21863\">10.15479/AT-ISTA-21863</a>","short":"T. Werner, Interfacing Superconducting Qubits with Optical Photons, Institute of Science and Technology Austria, 2026.","ista":"Werner T. 2026. Interfacing superconducting qubits with optical photons. Institute of Science and Technology Austria.","mla":"Werner, Thomas. <i>Interfacing Superconducting Qubits with Optical Photons</i>. Institute of Science and Technology Austria, 2026, doi:<a href=\"https://doi.org/10.15479/AT-ISTA-21863\">10.15479/AT-ISTA-21863</a>.","ieee":"T. Werner, “Interfacing superconducting qubits with optical photons,” Institute of Science and Technology Austria, 2026.","apa":"Werner, T. (2026). <i>Interfacing superconducting qubits with optical photons</i>. Institute of Science and Technology Austria. <a href=\"https://doi.org/10.15479/AT-ISTA-21863\">https://doi.org/10.15479/AT-ISTA-21863</a>","chicago":"Werner, Thomas. “Interfacing Superconducting Qubits with Optical Photons.” Institute of Science and Technology Austria, 2026. <a href=\"https://doi.org/10.15479/AT-ISTA-21863\">https://doi.org/10.15479/AT-ISTA-21863</a>."},"oa":1,"tmp":{"short":"CC BY (4.0)","name":"Creative Commons Attribution 4.0 International Public License (CC-BY 4.0)","image":"/images/cc_by.png","legal_code_url":"https://creativecommons.org/licenses/by/4.0/legalcode"},"date_updated":"2026-05-20T13:35:43Z","abstract":[{"lang":"eng","text":"Atoms and photons, two things so different but yet so alike. The former, the building block of matter, something we learn about in school and imagine it as some tiny marbles encircled by other tinier marbles. The latter, an electromagnetic wave, a light particle or an excitation of the electromagnetic field. Quantum mechanics tells us about the properties of these two entities. And even if it sounds, looks and writes counter-intuitive, it has proven right for over a century now.\r\n\r\nIn this work, I elaborate on how we tested the laws of quantum mechanics and how we used them learn more about the tiny building blocks of nature and the fields they use to talk to each other. The atoms we use, are artificial. Superconducting qubits, small electrical circuits with quantized energy levels behave like electrons that transition between different orbitals in an atom. One of the qubits' advantages, is also a big disadvantage. We design the circuits' energy levels and fabricate them in a cleanroom. This allows for arbitrary spaced energy levels but in contrast to real atoms, prevents two superconducting qubits from being alike. Still, this qubit platform is one of the frontrunners for future quantum computing technology and testing fundamental physics due to their scalability.\r\n\r\nWe interface superconducting qubits, which operate in the GHz regime, with microwave photons. We use 3D aluminum cavities as mediators between qubits and photons. The cavities allow for non-destructive readout of the qubit state, they shield the qubits from noise at the qubit frequency and they give us an easy way to frequency-tune these joint systems.\r\n\r\nWe need to operate superconducting qubits and their cavities at millikelvin temperatures in dilution refrigerators. At higher temperatures, superconductivity suffers and even worse, the environment is filled with thermal noise photons. This poses a fundamental limitation on the scalability of superconducting qubit devices. Also connecting multiple devices in different fridges does not work over room temperature links because the microwave photons used for this purpose will be covered in noise and the quantum information they carry, will be unusable.\r\n\r\nInfrared photons do not suffer from this noise problem since there are close to zero thermal noise photons at their frequencies at room temperature. We cannot simply interface superconducting devices with optical photons due their frequency mismatch and the destructive effect of optical photons on superconductors. Therefore, we use microwave-to-optics transducers that allow to convert microwave photons into optical ones and vice-versa. The transducers that we use are macroscopic electro-optic transducers using the Pockels effect in a disk-shaped Lithium Niobate whispering gallery mode resonator. By using a strong optical pump, photons from the two frequency domains experience a beam-splitter interaction and get converted from one to the other.\r\n\r\nWe measure the generated optical photons using elaborate optical setups, optical heterodyning and single photon detectors to gain knowledge about the qubit state or the converted microwave photons. Bridging the microwave and the optical world allows us to take advantage of both of their strengths but it also requires deep knowledge about both of their working principles.\r\n\r\nIn this work, we describe two experiments that our group conducted to showcase the opportunities that arise from interfacing superconducting qubits with optical photons but also the pitfalls, one may encounter on the way.\r\n\r\nIn the first experiment, we managed to all-optically read out a superconducting qubit. We show that the assignment fidelity, the probability that a measurement of the qubit state matches the prepared state, is close to equal for all-optical, microwave-to-optics and conventional microwave readout. We show T1 and T2 measurements for all three readout types and give an analysis of the noise caused by the optics. Finally, we show that the infrared light does not affect the qubit performance in a negative way but that the heating it causes does. This is an important insight that we used in the next experiment.\r\n\r\nThe second experiment is the upconversion of itinerant single microwave photons to the optical domain. We show that we can generate single microwave photons from a qubit-cavity system. We upconvert these single photons, measure them with a single photon detector and reconstruct their shape. By conducting a single photon Rabi measurement, we show correlations between the microwave and the optical domain. And by thorough signal-to-noise measurements and noise analysis, we find that we can generate single infrared photons with high signal-to-noise ratio 5.1 and low transducer added noise (<0.012 quanta). We show that this measurement creates a path towards entanglement of a superconducting qubit and an optical photon and what parameters need to be improved to achieve it. Additionally, this experiment is a proof of principle for an on-demand infrared single photon source. More generally, it allows to link microwave quantum technology in general to the optical domain."}],"date_created":"2026-05-12T09:04:02Z","type":"dissertation","publication_identifier":{"issn":["2663-337X"]},"oa_version":"Published Version"},{"corr_author":"1","year":"2025","title":"Atoms in a propagating-wave cavity for squeezed Mach-Zehnder atom interferometry","license":"https://creativecommons.org/licenses/by-nc/4.0/","page":"152","file":[{"embargo_to":"open_access","relation":"main_file","content_type":"application/pdf","access_level":"closed","creator":"swald","checksum":"1be72faf529a5e8a2d03cb3d5f808b77","file_size":47536855,"date_updated":"2025-12-17T09:46:34Z","file_id":"20809","file_name":"2025_Wald_Sebastian_Thesis.pdf","date_created":"2025-12-12T11:53:42Z","embargo":"2026-06-15"},{"relation":"source_file","content_type":"application/x-zip-compressed","access_level":"closed","creator":"swald","checksum":"8c3a1904dceb4bcd04bc9f14b2594bab","file_size":40127601,"date_updated":"2025-12-12T13:07:32Z","file_id":"20810","file_name":"2025_Wald_Sebastian_Thesis.zip","date_created":"2025-12-12T11:54:55Z"}],"user_id":"ba8df636-2132-11f1-aed0-ed93e2281fdd","doi":"10.15479/AT-ISTA-20798","publisher":"Institute of Science and Technology Austria","supervisor":[{"id":"4C02D85E-F248-11E8-B48F-1D18A9856A87","full_name":"Hosten, Onur","first_name":"Onur","last_name":"Hosten","orcid":"0000-0002-2031-204X"}],"author":[{"id":"133F200A-B015-11E9-AD41-0EDAE5697425","full_name":"Wald, Sebastian","first_name":"Sebastian","last_name":"Wald","orcid":"0000-0002-5869-1604"}],"month":"12","status":"public","OA_place":"publisher","related_material":{"record":[{"relation":"part_of_dissertation","status":"public","id":"14759"}]},"file_date_updated":"2025-12-17T09:46:34Z","_id":"20798","OA_embargo":"6","publication_status":"published","date_created":"2025-12-11T11:48:11Z","type":"dissertation","citation":{"ista":"Wald S. 2025. Atoms in a propagating-wave cavity for squeezed Mach-Zehnder atom interferometry. Institute of Science and Technology Austria.","short":"S. Wald, Atoms in a Propagating-Wave Cavity for Squeezed Mach-Zehnder Atom Interferometry, Institute of Science and Technology Austria, 2025.","ama":"Wald S. Atoms in a propagating-wave cavity for squeezed Mach-Zehnder atom interferometry. 2025. doi:<a href=\"https://doi.org/10.15479/AT-ISTA-20798\">10.15479/AT-ISTA-20798</a>","chicago":"Wald, Sebastian. “Atoms in a Propagating-Wave Cavity for Squeezed Mach-Zehnder Atom Interferometry.” Institute of Science and Technology Austria, 2025. <a href=\"https://doi.org/10.15479/AT-ISTA-20798\">https://doi.org/10.15479/AT-ISTA-20798</a>.","apa":"Wald, S. (2025). <i>Atoms in a propagating-wave cavity for squeezed Mach-Zehnder atom interferometry</i>. Institute of Science and Technology Austria. <a href=\"https://doi.org/10.15479/AT-ISTA-20798\">https://doi.org/10.15479/AT-ISTA-20798</a>","ieee":"S. Wald, “Atoms in a propagating-wave cavity for squeezed Mach-Zehnder atom interferometry,” Institute of Science and Technology Austria, 2025.","mla":"Wald, Sebastian. <i>Atoms in a Propagating-Wave Cavity for Squeezed Mach-Zehnder Atom Interferometry</i>. Institute of Science and Technology Austria, 2025, doi:<a href=\"https://doi.org/10.15479/AT-ISTA-20798\">10.15479/AT-ISTA-20798</a>."},"tmp":{"legal_code_url":"https://creativecommons.org/licenses/by-nc/4.0/legalcode","name":"Creative Commons Attribution-NonCommercial 4.0 International (CC BY-NC 4.0)","image":"/images/cc_by_nc.png","short":"CC BY-NC (4.0)"},"date_updated":"2026-04-07T12:35:11Z","article_processing_charge":"No","oa_version":"Published Version","publication_identifier":{"issn":["2663-337X"],"isbn":["978-3-99078-075-6"]},"degree_awarded":"PhD","date_published":"2025-12-11T00:00:00Z","keyword":["entanglement-enhanced atom interferometry","cavity QED","spin-squeezing","dipole trap","quantum optics"],"department":[{"_id":"GradSch"},{"_id":"OnHo"}],"ddc":["530"],"language":[{"iso":"eng"}],"day":"11","alternative_title":["ISTA Thesis"],"has_accepted_license":"1"},{"article_type":"original","issue":"6","_id":"21531","quality_controlled":"1","publication_status":"published","author":[{"last_name":"Roques-Carmes","full_name":"Roques-Carmes, Charles","id":"e2e68fc9-6505-11ef-a541-eb4e72cc3e82","first_name":"Charles"},{"last_name":"Karnieli","first_name":"Aviv","full_name":"Karnieli, Aviv"},{"last_name":"Miller","first_name":"David A. B.","full_name":"Miller, David A. B."},{"last_name":"Fan","first_name":"Shanhui","full_name":"Fan, Shanhui"}],"month":"05","status":"public","OA_place":"repository","main_file_link":[{"open_access":"1","url":"https://doi.org/10.48550/arXiv.2407.16849"}],"user_id":"2DF688A6-F248-11E8-B48F-1D18A9856A87","doi":"10.1021/acsphotonics.5c00813","publisher":"American Chemical Society","year":"2025","title":"Automated modal analysis of entanglement with bipartite self-configuring optics","extern":"1","page":"3285-3294","intvolume":"        12","day":"28","OA_type":"green","publication":"ACS Photonics","external_id":{"arxiv":["2407.16849"]},"keyword":["integrated photonics","spontaneous parametric down conversion","entanglement","quantum teleportation","reconfigurable optics"],"date_published":"2025-05-28T00:00:00Z","language":[{"iso":"eng"}],"volume":12,"oa_version":"Preprint","scopus_import":"1","publication_identifier":{"eissn":["2330-4022"]},"date_created":"2026-03-30T12:22:47Z","abstract":[{"lang":"eng","text":"Entanglement is a unique feature of quantum mechanics. In coupled systems of light and matter, entanglement manifests itself in the linear superposition of multipartite quantum states (e.g., parametrized by the multiple spatial, spectral, or temporal degrees of freedom of a light field). In bipartite systems, the Schmidt decomposition provides a modal decomposition of the entanglement structure over independent, separable states. Although ubiquitous as a mathematical tool to describe and measure entanglement, there exists no general efficient experimental method to decompose a bipartite quantum state onto its Schmidt modes. Here, we propose a method that relies on bipartite self-configuring optics that automatically ``learns'' the Schmidt decomposition of an arbitrary pure quantum state. Our method is agnostic to the degrees of freedom over which quantum entanglement is distributed and can reconstruct the Schmidt modes and values by variational optimization of the network's output powers or coincidences. We illustrate our method with numerical examples of spectral entanglement analysis for biphotons generated via spontaneous parametric down conversion and provide experimental guidelines for its realization, including the influence of losses and impurities. Our method provides a versatile and scalable way of analyzing entanglement in bipartite integrated quantum photonic systems. "}],"type":"journal_article","arxiv":1,"citation":{"ista":"Roques-Carmes C, Karnieli A, Miller DAB, Fan S. 2025. Automated modal analysis of entanglement with bipartite self-configuring optics. ACS Photonics. 12(6), 3285–3294.","short":"C. Roques-Carmes, A. Karnieli, D.A.B. Miller, S. Fan, ACS Photonics 12 (2025) 3285–3294.","ama":"Roques-Carmes C, Karnieli A, Miller DAB, Fan S. Automated modal analysis of entanglement with bipartite self-configuring optics. <i>ACS Photonics</i>. 2025;12(6):3285-3294. doi:<a href=\"https://doi.org/10.1021/acsphotonics.5c00813\">10.1021/acsphotonics.5c00813</a>","mla":"Roques-Carmes, Charles, et al. “Automated Modal Analysis of Entanglement with Bipartite Self-Configuring Optics.” <i>ACS Photonics</i>, vol. 12, no. 6, American Chemical Society, 2025, pp. 3285–94, doi:<a href=\"https://doi.org/10.1021/acsphotonics.5c00813\">10.1021/acsphotonics.5c00813</a>.","ieee":"C. Roques-Carmes, A. Karnieli, D. A. B. Miller, and S. Fan, “Automated modal analysis of entanglement with bipartite self-configuring optics,” <i>ACS Photonics</i>, vol. 12, no. 6. American Chemical Society, pp. 3285–3294, 2025.","apa":"Roques-Carmes, C., Karnieli, A., Miller, D. A. B., &#38; Fan, S. (2025). Automated modal analysis of entanglement with bipartite self-configuring optics. <i>ACS Photonics</i>. American Chemical Society. <a href=\"https://doi.org/10.1021/acsphotonics.5c00813\">https://doi.org/10.1021/acsphotonics.5c00813</a>","chicago":"Roques-Carmes, Charles, Aviv Karnieli, David A. B. Miller, and Shanhui Fan. “Automated Modal Analysis of Entanglement with Bipartite Self-Configuring Optics.” <i>ACS Photonics</i>. American Chemical Society, 2025. <a href=\"https://doi.org/10.1021/acsphotonics.5c00813\">https://doi.org/10.1021/acsphotonics.5c00813</a>."},"oa":1,"date_updated":"2026-04-27T08:42:39Z","article_processing_charge":"No"},{"month":"04","OA_place":"publisher","status":"public","related_material":{"record":[{"id":"18978","status":"public","relation":"research_data"},{"status":"public","relation":"part_of_dissertation","id":"19280"},{"status":"public","relation":"part_of_dissertation","id":"17183"},{"status":"public","relation":"part_of_dissertation","id":"13117"}]},"project":[{"_id":"237CBA6C-32DE-11EA-91FC-C7463DDC885E","grant_number":"862644","call_identifier":"H2020","name":"Quantum readout techniques and technologies"},{"grant_number":"F07105","_id":"bdb108fd-d553-11ed-ba76-83dc74a9864f","name":"QUANTUM INFORMATION SYSTEMS BEYOND CLASSICAL CAPABILITIES / P5- Integration of Superconducting Quantum Circuits"}],"supervisor":[{"first_name":"Johannes M","id":"4B591CBA-F248-11E8-B48F-1D18A9856A87","full_name":"Fink, Johannes M","last_name":"Fink","orcid":"0000-0001-8112-028X"}],"author":[{"orcid":"0000-0001-7641-8348","full_name":"Sett, Riya","id":"2E6D040E-F248-11E8-B48F-1D18A9856A87","first_name":"Riya","last_name":"Sett"}],"publication_status":"published","file_date_updated":"2025-10-11T22:30:02Z","_id":"19533","page":"109","file":[{"file_size":4129208,"date_created":"2025-04-10T11:33:22Z","embargo":"2025-10-11","file_name":"PhD_Thesis_Riya_Sett_pdfa.pdf","file_id":"19538","date_updated":"2025-10-11T22:30:02Z","relation":"main_file","content_type":"application/pdf","checksum":"ba6cd2289d0141a160a14fc97df1632f","creator":"rsett","access_level":"open_access"},{"date_updated":"2025-10-11T22:30:02Z","file_id":"19539","file_name":"PhD Thesis Riya Sett.zip","date_created":"2025-04-10T11:34:08Z","file_size":6646110,"access_level":"closed","creator":"rsett","checksum":"ee63a94cb8f7adf5e766903028b81ed6","embargo_to":"open_access","content_type":"application/x-zip-compressed","relation":"source_file"}],"year":"2025","title":" Quantum remote sensing and non-equilibrium phase transitions in the microwave regime","corr_author":"1","doi":"10.15479/AT-ISTA-19533","publisher":"Institute of Science and Technology Austria","user_id":"2DF688A6-F248-11E8-B48F-1D18A9856A87","acknowledged_ssus":[{"_id":"ScienComp"},{"_id":"M-Shop"},{"_id":"NanoFab"},{"_id":"LifeSc"},{"_id":"SSU"}],"department":[{"_id":"GradSch"},{"_id":"JoFi"}],"ddc":["530"],"language":[{"iso":"eng"}],"degree_awarded":"PhD","date_published":"2025-04-01T00:00:00Z","keyword":["phase transition","open quantum system","phase diagram","cavity quantum electrodynamics","superconducting qubits","semiclassical physics","quantum optics","josephson junction","parametric converter","phase conjugation","quantum radar","quantum entanglement","correlation","quantum sensing"],"alternative_title":["ISTA Thesis"],"has_accepted_license":"1","ec_funded":1,"day":"1","acknowledgement":"I acknowledge the generous financial support of the Austrian Science Fund (FWF) via BeyondC\r\n(F7105) and the European Union’s Horizon 2020 research and innovation program (FETopen\r\nQUARTET, Grant Agreement No. 862644), which made this research possible. I also extend\r\nmy sincere appreciation to the MIBA workshop and the Institute of Science and Technology\r\nAustria nanofabrication facility for their technical assistance, which was instrumental in realizing\r\nthis work.","article_processing_charge":"No","date_created":"2025-04-09T16:44:26Z","abstract":[{"lang":"eng","text":"This thesis explores advancements in quantum remote sensing and non-equilibrium phase\r\ntransitions in the microwave regime, with a focus on dissipative phase transitions and quantumenhanced sensing.\r\nIn the first project, I experimentally studied photon blockade breakdown as a dissipative phase\r\ntransition in a zero-dimensional cavity-qubit system. By defining an appropriate thermodynamic\r\nlimit, we demonstrated that the observed bistability is a genuine signature of a first-order\r\nphase transition in this system. This work provides insight into non-equilibrium quantum\r\ndynamics and phase transitions in driven-dissipative open quantum systems.\r\nThe second project focuses on the experimental realization of a phase-conjugate receiver for\r\nquantum illumination (QI), a quantum sensing protocol that enhances target detection in noisy\r\nenvironments using entangled light. While an ideal spontaneous parametric down-conversion\r\n(SPDC) source and receiver could, in theory, provide up to a 6 dB advantage over classical\r\nillumination, no such ideal receiver exists. Instead, we explore an experimental realization of a\r\nphase-conjugate receiver for QI in the microwave regime at millikelvin temperatures using a\r\nJosephson parametric converter (JPC) as a source of continuous-variable Gaussian entangled\r\nsignal-idler pairs, where a maximum 3 dB advantage is theoretically achievable. We investigate\r\nkey experimental limitations that constrain practical QI performance, contributing to the\r\ndevelopment of quantum-enhanced sensing.\r\nAdditionally, this thesis presents efficient digital signal processing (DSP) techniques implemented in C++ and Python in collaboration with Przemysław Zieliński and Luka Drmić. These\r\nmethods, optimized using the Intel Integrated Performance Primitives (IPP) library, have been\r\nessential in data acquisition, noise filtering, and correlation analysis across multiple research\r\nprojects. Although not real-time, these DSP techniques significantly enhance the accuracy of\r\nquantum measurements.\r\nOverall, this thesis advances quantum-enhanced sensing by establishing the thermodynamic\r\nlimit in a single transmon-cavity system and experimentally exploring a phase-conjugate receiver\r\nfor QI. These findings contribute to quantum metrology, particularly for weak signal detection\r\nand remote sensing in noisy environments.\r\n"}],"type":"dissertation","oa":1,"citation":{"ama":"Sett R.  Quantum remote sensing and non-equilibrium phase transitions in the microwave regime. 2025. doi:<a href=\"https://doi.org/10.15479/AT-ISTA-19533\">10.15479/AT-ISTA-19533</a>","ista":"Sett R. 2025.  Quantum remote sensing and non-equilibrium phase transitions in the microwave regime. Institute of Science and Technology Austria.","short":"R. Sett,  Quantum Remote Sensing and Non-Equilibrium Phase Transitions in the Microwave Regime, Institute of Science and Technology Austria, 2025.","ieee":"R. Sett, “ Quantum remote sensing and non-equilibrium phase transitions in the microwave regime,” Institute of Science and Technology Austria, 2025.","mla":"Sett, Riya. <i> Quantum Remote Sensing and Non-Equilibrium Phase Transitions in the Microwave Regime</i>. Institute of Science and Technology Austria, 2025, doi:<a href=\"https://doi.org/10.15479/AT-ISTA-19533\">10.15479/AT-ISTA-19533</a>.","chicago":"Sett, Riya. “ Quantum Remote Sensing and Non-Equilibrium Phase Transitions in the Microwave Regime.” Institute of Science and Technology Austria, 2025. <a href=\"https://doi.org/10.15479/AT-ISTA-19533\">https://doi.org/10.15479/AT-ISTA-19533</a>.","apa":"Sett, R. (2025). <i> Quantum remote sensing and non-equilibrium phase transitions in the microwave regime</i>. Institute of Science and Technology Austria. <a href=\"https://doi.org/10.15479/AT-ISTA-19533\">https://doi.org/10.15479/AT-ISTA-19533</a>"},"tmp":{"short":"CC BY (4.0)","name":"Creative Commons Attribution 4.0 International Public License (CC-BY 4.0)","image":"/images/cc_by.png","legal_code_url":"https://creativecommons.org/licenses/by/4.0/legalcode"},"date_updated":"2026-06-03T07:16:05Z","oa_version":"Published Version","publication_identifier":{"issn":["2663-337X"]}},{"publication_identifier":{"issn":["2334-2536"]},"scopus_import":"1","oa_version":"Published Version","article_processing_charge":"Yes","acknowledgement":"We thank Rishabh Sahu and Sebastian Wald for technical contributions to the experiment. Funding by Institute of Science and Technology Austria.","tmp":{"short":"CC BY (4.0)","name":"Creative Commons Attribution 4.0 International Public License (CC-BY 4.0)","image":"/images/cc_by.png","legal_code_url":"https://creativecommons.org/licenses/by/4.0/legalcode"},"date_updated":"2025-09-04T12:13:27Z","oa":1,"citation":{"apa":"Diorico, F. R., Zhutov, A., &#38; Hosten, O. (2024). Laser-cavity locking utilizing beam ellipticity: accessing the 10<sup>−7</sup> instability scale relative to cavity linewidth. <i>Optica</i>. Optica Publishing Group. <a href=\"https://doi.org/10.1364/optica.507451\">https://doi.org/10.1364/optica.507451</a>","chicago":"Diorico, Fritz R, Artem Zhutov, and Onur Hosten. “Laser-Cavity Locking Utilizing Beam Ellipticity: Accessing the 10<sup>−7</sup> Instability Scale Relative to Cavity Linewidth.” <i>Optica</i>. Optica Publishing Group, 2024. <a href=\"https://doi.org/10.1364/optica.507451\">https://doi.org/10.1364/optica.507451</a>.","ieee":"F. R. Diorico, A. Zhutov, and O. Hosten, “Laser-cavity locking utilizing beam ellipticity: accessing the 10<sup>−7</sup> instability scale relative to cavity linewidth,” <i>Optica</i>, vol. 11, no. 1. Optica Publishing Group, pp. 26–31, 2024.","mla":"Diorico, Fritz R., et al. “Laser-Cavity Locking Utilizing Beam Ellipticity: Accessing the 10<sup>−7</sup> Instability Scale Relative to Cavity Linewidth.” <i>Optica</i>, vol. 11, no. 1, Optica Publishing Group, 2024, pp. 26–31, doi:<a href=\"https://doi.org/10.1364/optica.507451\">10.1364/optica.507451</a>.","short":"F.R. Diorico, A. Zhutov, O. Hosten, Optica 11 (2024) 26–31.","ista":"Diorico FR, Zhutov A, Hosten O. 2024. Laser-cavity locking utilizing beam ellipticity: accessing the 10<sup>−7</sup> instability scale relative to cavity linewidth. Optica. 11(1), 26–31.","ama":"Diorico FR, Zhutov A, Hosten O. Laser-cavity locking utilizing beam ellipticity: accessing the 10<sup>−7</sup> instability scale relative to cavity linewidth. <i>Optica</i>. 2024;11(1):26-31. doi:<a href=\"https://doi.org/10.1364/optica.507451\">10.1364/optica.507451</a>"},"APC_amount":"3393,38 EUR","type":"journal_article","date_created":"2024-01-15T10:25:38Z","abstract":[{"lang":"eng","text":"Frequency-stable lasers form the back bone of precision measurements in science and technology. Such lasers typically attain their stability through frequency locking to reference cavities. State-of-the-art locking performances to date had been achieved using frequency modulation based methods, complemented with active drift cancellation systems. We demonstrate an all passive, modulation-free laser-cavity locking technique (squash locking) that utilizes changes in spatial beam ellipticity for error signal generation, and a coherent polarization post-selection for noise resilience. By comparing two identically built proof-of-principle systems, we show a frequency locking instability of 5×10<jats:sup>−7</jats:sup> relative to the cavity linewidth at 10 s averaging. The results surpass the demonstrated performances of methods engineered over the last five decades, potentially enabling an advancement in the precision control of lasers, while creating avenues for bridging the performance gaps between industrial grade lasers with scientific ones due to the afforded simplicity and scalability."}],"has_accepted_license":"1","external_id":{"isi":["001202817000004"]},"publication":"Optica","OA_type":"gold","day":"20","intvolume":"        11","language":[{"iso":"eng"}],"volume":11,"ddc":["530"],"department":[{"_id":"OnHo"}],"date_published":"2024-01-20T00:00:00Z","keyword":["Atomic and Molecular Physics","and Optics","Electronic","Optical and Magnetic Materials"],"DOAJ_listed":"1","publisher":"Optica Publishing Group","doi":"10.1364/optica.507451","user_id":"317138e5-6ab7-11ef-aa6d-ffef3953e345","file":[{"file_size":4558986,"date_created":"2024-01-17T08:53:16Z","file_name":"2023_Optica_Diorico.pdf","file_id":"14824","date_updated":"2024-01-17T08:53:16Z","success":1,"relation":"main_file","content_type":"application/pdf","checksum":"eb99ca7d0fe73e22f121875175546ed7","creator":"dernst","access_level":"open_access"}],"page":"26-31","isi":1,"title":"Laser-cavity locking utilizing beam ellipticity: accessing the 10<sup>−7</sup> instability scale relative to cavity linewidth","year":"2024","corr_author":"1","quality_controlled":"1","publication_status":"published","_id":"14802","issue":"1","article_type":"original","file_date_updated":"2024-01-17T08:53:16Z","status":"public","OA_place":"publisher","month":"01","author":[{"full_name":"Diorico, Fritz R","id":"2E054C4C-F248-11E8-B48F-1D18A9856A87","first_name":"Fritz R","last_name":"Diorico","orcid":"0000-0002-4947-8924"},{"last_name":"Zhutov","id":"0f02ed6a-b514-11ee-b891-8379c5f19cb7","full_name":"Zhutov, Artem","first_name":"Artem"},{"orcid":"0000-0002-2031-204X","full_name":"Hosten, Onur","id":"4C02D85E-F248-11E8-B48F-1D18A9856A87","first_name":"Onur","last_name":"Hosten"}]},{"abstract":[{"lang":"eng","text":"Coupling of orbital motion to a spin degree of freedom gives rise to various transport phenomena in quantum systems that are beyond the standard paradigms of classical physics. Here, we discuss features of spin-orbit dynamics that can be visualized using a classical model with two coupled angular degrees of freedom. Specifically, we demonstrate classical ‘spin’ filtering through our model and show that the interplay between angular degrees of freedom and dissipation can lead to asymmetric ‘spin’ transport."}],"date_created":"2024-03-01T11:39:33Z","type":"journal_article","oa":1,"citation":{"ama":"Varshney A, Ghazaryan A, Volosniev A. Classical ‘spin’ filtering with two degrees of freedom and dissipation. <i>Few-Body Systems</i>. 2024;65. doi:<a href=\"https://doi.org/10.1007/s00601-024-01880-x\">10.1007/s00601-024-01880-x</a>","short":"A. Varshney, A. Ghazaryan, A. Volosniev, Few-Body Systems 65 (2024).","ista":"Varshney A, Ghazaryan A, Volosniev A. 2024. Classical ‘spin’ filtering with two degrees of freedom and dissipation. Few-Body Systems. 65, 12.","chicago":"Varshney, Atul, Areg Ghazaryan, and Artem Volosniev. “Classical ‘Spin’ Filtering with Two Degrees of Freedom and Dissipation.” <i>Few-Body Systems</i>. Springer Nature, 2024. <a href=\"https://doi.org/10.1007/s00601-024-01880-x\">https://doi.org/10.1007/s00601-024-01880-x</a>.","apa":"Varshney, A., Ghazaryan, A., &#38; Volosniev, A. (2024). Classical ‘spin’ filtering with two degrees of freedom and dissipation. <i>Few-Body Systems</i>. Springer Nature. <a href=\"https://doi.org/10.1007/s00601-024-01880-x\">https://doi.org/10.1007/s00601-024-01880-x</a>","mla":"Varshney, Atul, et al. “Classical ‘Spin’ Filtering with Two Degrees of Freedom and Dissipation.” <i>Few-Body Systems</i>, vol. 65, 12, Springer Nature, 2024, doi:<a href=\"https://doi.org/10.1007/s00601-024-01880-x\">10.1007/s00601-024-01880-x</a>.","ieee":"A. Varshney, A. Ghazaryan, and A. Volosniev, “Classical ‘spin’ filtering with two degrees of freedom and dissipation,” <i>Few-Body Systems</i>, vol. 65. Springer Nature, 2024."},"arxiv":1,"tmp":{"short":"CC BY (4.0)","name":"Creative Commons Attribution 4.0 International Public License (CC-BY 4.0)","image":"/images/cc_by.png","legal_code_url":"https://creativecommons.org/licenses/by/4.0/legalcode"},"date_updated":"2025-09-04T12:09:29Z","acknowledgement":"We thank Mikhail Lemeshko and members of his group for many inspiring discussions; Alberto Cappellaro for comments on the manuscript.\r\nOpen access funding provided by Institute of Science and Technology (IST Austria).","article_number":"12","article_processing_charge":"Yes (via OA deal)","scopus_import":"1","oa_version":"Published Version","publication_identifier":{"issn":["1432-5411"]},"date_published":"2024-02-17T00:00:00Z","keyword":["Atomic and Molecular Physics","and Optics"],"department":[{"_id":"MiLe"}],"ddc":["530"],"language":[{"iso":"eng"}],"volume":65,"intvolume":"        65","day":"17","publication":"Few-Body Systems","external_id":{"arxiv":["2401.08454"],"isi":["001163768200001"]},"has_accepted_license":"1","isi":1,"year":"2024","title":"Classical ‘spin’ filtering with two degrees of freedom and dissipation","corr_author":"1","file":[{"file_size":436712,"file_id":"15049","date_updated":"2024-03-04T07:07:10Z","success":1,"date_created":"2024-03-04T07:07:10Z","file_name":"2024_FewBodySys_Varshney.pdf","content_type":"application/pdf","relation":"main_file","access_level":"open_access","checksum":"c4e08cc7bc756da69b1b36fda7bb92fb","creator":"dernst"}],"user_id":"317138e5-6ab7-11ef-aa6d-ffef3953e345","doi":"10.1007/s00601-024-01880-x","publisher":"Springer Nature","author":[{"orcid":"0000-0002-3072-5999","last_name":"Varshney","first_name":"Atul","full_name":"Varshney, Atul","id":"2A2006B2-F248-11E8-B48F-1D18A9856A87"},{"id":"4AF46FD6-F248-11E8-B48F-1D18A9856A87","full_name":"Ghazaryan, Areg","first_name":"Areg","last_name":"Ghazaryan","orcid":"0000-0001-9666-3543"},{"orcid":"0000-0003-0393-5525","last_name":"Volosniev","id":"37D278BC-F248-11E8-B48F-1D18A9856A87","full_name":"Volosniev, Artem","first_name":"Artem"}],"month":"02","status":"public","file_date_updated":"2024-03-04T07:07:10Z","article_type":"original","_id":"15045","quality_controlled":"1","publication_status":"published"},{"quality_controlled":"1","publication_status":"published","_id":"21529","article_type":"original","issue":"8","status":"public","main_file_link":[{"url":"https://doi.org/10.48550/arXiv.2403.13071","open_access":"1"}],"OA_place":"repository","month":"07","author":[{"last_name":"Karnieli","full_name":"Karnieli, Aviv","first_name":"Aviv"},{"first_name":"Charles","full_name":"Roques-Carmes, Charles","id":"e2e68fc9-6505-11ef-a541-eb4e72cc3e82","last_name":"Roques-Carmes"},{"last_name":"Rivera","first_name":"Nicholas","full_name":"Rivera, Nicholas"},{"last_name":"Fan","full_name":"Fan, Shanhui","first_name":"Shanhui"}],"publisher":"American Chemical Society","doi":"10.1021/acsphotonics.4c00908","user_id":"2DF688A6-F248-11E8-B48F-1D18A9856A87","page":"3401-3411","extern":"1","year":"2024","title":"Strong coupling and single-photon nonlinearity in free-electron quantum optics","external_id":{"arxiv":["2403.13071"]},"publication":"ACS Photonics","OA_type":"green","day":"29","intvolume":"        11","volume":11,"language":[{"iso":"eng"}],"ddc":["530"],"keyword":["quantum optics","free electrons","single photon nonlinearity","electron-photon interaction"],"date_published":"2024-07-29T00:00:00Z","publication_identifier":{"eissn":["2330-4022"]},"oa_version":"Preprint","scopus_import":"1","article_processing_charge":"No","date_updated":"2026-04-27T10:30:37Z","oa":1,"arxiv":1,"citation":{"apa":"Karnieli, A., Roques-Carmes, C., Rivera, N., &#38; Fan, S. (2024). Strong coupling and single-photon nonlinearity in free-electron quantum optics. <i>ACS Photonics</i>. American Chemical Society. <a href=\"https://doi.org/10.1021/acsphotonics.4c00908\">https://doi.org/10.1021/acsphotonics.4c00908</a>","chicago":"Karnieli, Aviv, Charles Roques-Carmes, Nicholas Rivera, and Shanhui Fan. “Strong Coupling and Single-Photon Nonlinearity in Free-Electron Quantum Optics.” <i>ACS Photonics</i>. American Chemical Society, 2024. <a href=\"https://doi.org/10.1021/acsphotonics.4c00908\">https://doi.org/10.1021/acsphotonics.4c00908</a>.","ieee":"A. Karnieli, C. Roques-Carmes, N. Rivera, and S. Fan, “Strong coupling and single-photon nonlinearity in free-electron quantum optics,” <i>ACS Photonics</i>, vol. 11, no. 8. American Chemical Society, pp. 3401–3411, 2024.","mla":"Karnieli, Aviv, et al. “Strong Coupling and Single-Photon Nonlinearity in Free-Electron Quantum Optics.” <i>ACS Photonics</i>, vol. 11, no. 8, American Chemical Society, 2024, pp. 3401–11, doi:<a href=\"https://doi.org/10.1021/acsphotonics.4c00908\">10.1021/acsphotonics.4c00908</a>.","short":"A. Karnieli, C. Roques-Carmes, N. Rivera, S. Fan, ACS Photonics 11 (2024) 3401–3411.","ista":"Karnieli A, Roques-Carmes C, Rivera N, Fan S. 2024. Strong coupling and single-photon nonlinearity in free-electron quantum optics. ACS Photonics. 11(8), 3401–3411.","ama":"Karnieli A, Roques-Carmes C, Rivera N, Fan S. Strong coupling and single-photon nonlinearity in free-electron quantum optics. <i>ACS Photonics</i>. 2024;11(8):3401-3411. doi:<a href=\"https://doi.org/10.1021/acsphotonics.4c00908\">10.1021/acsphotonics.4c00908</a>"},"type":"journal_article","abstract":[{"lang":"eng","text":"A central challenge in the emerging field of free-electron quantum optics is to achieve strong quantum interaction and single-photon nonlinearity between a flying free electron and a photonic mode. Existing schemes are intrinsically limited by electron diffraction, which puts an upper bound on the interaction length and, therefore, on the strength of quantum coupling and nonlinearity. Here, we propose “free-electron fibers”: effectively one-dimensional photonic systems where free electrons copropagate with two guided modes. The first mode applies a ponderomotive trap to the free electron, removing the limitations due to electron diffraction. The second mode strongly couples to the guided free electron with an enhanced coupling that is orders of magnitude larger than previous designs. The extended interaction lengths enabled by our scheme allow for strong single-photon nonlinearities mediated by free electrons. We predict novel quantum effects in our system such as deterministic single-photon emission and nonlinear multimode dynamics. Our proposal paves the way toward the realization of heralded macroscopic nonclassical light generation, deterministic single-photon sources, and quantum gates controlled by free-electron–photon interactions."}],"date_created":"2026-03-30T12:22:47Z"},{"has_accepted_license":"1","external_id":{"arxiv":["2211.01923"]},"publication":"SciPost Physics Core","day":"14","ec_funded":1,"intvolume":"         6","volume":6,"language":[{"iso":"eng"}],"ddc":["530"],"department":[{"_id":"MaSe"}],"keyword":["Statistical and Nonlinear Physics","Atomic and Molecular Physics","and Optics","Nuclear and High Energy Physics","Condensed Matter Physics"],"date_published":"2023-04-14T00:00:00Z","publication_identifier":{"issn":["2666-9366"]},"oa_version":"Published Version","scopus_import":"1","article_processing_charge":"No","acknowledgement":"S. De Nicola acknowledges funding from the Institute of Science and Technology Austria (ISTA), and from the European Union’s Horizon 2020 research and innovation program under the Marie Skłodowska-Curie Grant Agreement No. 754411. S. De Nicola also acknowledges funding from the EPSRC Center for Doctoral Training in Cross-Disciplinary Approaches to NonEquilibrium Systems (CANES) under Grant EP/L015854/1. ","article_number":"029","tmp":{"short":"CC BY (4.0)","name":"Creative Commons Attribution 4.0 International Public License (CC-BY 4.0)","image":"/images/cc_by.png","legal_code_url":"https://creativecommons.org/licenses/by/4.0/legalcode"},"date_updated":"2025-04-14T07:43:56Z","arxiv":1,"citation":{"ama":"Tucci G, De Nicola S, Wald S, Gambassi A. Stochastic representation of the quantum quartic oscillator. <i>SciPost Physics Core</i>. 2023;6(2). doi:<a href=\"https://doi.org/10.21468/scipostphyscore.6.2.029\">10.21468/scipostphyscore.6.2.029</a>","short":"G. Tucci, S. De Nicola, S. Wald, A. Gambassi, SciPost Physics Core 6 (2023).","ista":"Tucci G, De Nicola S, Wald S, Gambassi A. 2023. Stochastic representation of the quantum quartic oscillator. SciPost Physics Core. 6(2), 029.","apa":"Tucci, G., De Nicola, S., Wald, S., &#38; Gambassi, A. (2023). Stochastic representation of the quantum quartic oscillator. <i>SciPost Physics Core</i>. SciPost Foundation. <a href=\"https://doi.org/10.21468/scipostphyscore.6.2.029\">https://doi.org/10.21468/scipostphyscore.6.2.029</a>","chicago":"Tucci, Gennaro, Stefano De Nicola, Sascha Wald, and Andrea Gambassi. “Stochastic Representation of the Quantum Quartic Oscillator.” <i>SciPost Physics Core</i>. SciPost Foundation, 2023. <a href=\"https://doi.org/10.21468/scipostphyscore.6.2.029\">https://doi.org/10.21468/scipostphyscore.6.2.029</a>.","mla":"Tucci, Gennaro, et al. “Stochastic Representation of the Quantum Quartic Oscillator.” <i>SciPost Physics Core</i>, vol. 6, no. 2, 029, SciPost Foundation, 2023, doi:<a href=\"https://doi.org/10.21468/scipostphyscore.6.2.029\">10.21468/scipostphyscore.6.2.029</a>.","ieee":"G. Tucci, S. De Nicola, S. Wald, and A. Gambassi, “Stochastic representation of the quantum quartic oscillator,” <i>SciPost Physics Core</i>, vol. 6, no. 2. SciPost Foundation, 2023."},"oa":1,"type":"journal_article","date_created":"2023-07-24T10:47:46Z","abstract":[{"text":"Recent experimental advances have inspired the development of theoretical tools to describe the non-equilibrium dynamics of quantum systems. Among them an exact representation of quantum spin systems in terms of classical stochastic processes has been proposed. Here we provide first steps towards the extension of this stochastic approach to bosonic systems by considering the one-dimensional quantum quartic oscillator. We show how to exactly parameterize the time evolution of this prototypical model via the dynamics of a set of classical variables. We interpret these variables as stochastic processes, which allows us to propose a novel way to numerically simulate the time evolution of the system. We benchmark our findings by considering analytically solvable limits and providing alternative derivations of known results.","lang":"eng"}],"quality_controlled":"1","publication_status":"published","_id":"13277","issue":"2","article_type":"original","file_date_updated":"2023-07-31T09:02:27Z","status":"public","month":"04","author":[{"full_name":"Tucci, Gennaro","first_name":"Gennaro","last_name":"Tucci"},{"first_name":"Stefano","full_name":"De Nicola, Stefano","id":"42832B76-F248-11E8-B48F-1D18A9856A87","last_name":"De Nicola","orcid":"0000-0002-4842-6671"},{"last_name":"Wald","full_name":"Wald, Sascha","first_name":"Sascha"},{"first_name":"Andrea","full_name":"Gambassi, Andrea","last_name":"Gambassi"}],"project":[{"name":"ISTplus - Postdoctoral Fellowships","_id":"260C2330-B435-11E9-9278-68D0E5697425","call_identifier":"H2020","grant_number":"754411"}],"publisher":"SciPost Foundation","doi":"10.21468/scipostphyscore.6.2.029","user_id":"2DF688A6-F248-11E8-B48F-1D18A9856A87","file":[{"file_size":523236,"date_created":"2023-07-31T09:02:27Z","file_name":"2023_SciPostPhysCore_Tucci.pdf","file_id":"13329","date_updated":"2023-07-31T09:02:27Z","success":1,"relation":"main_file","content_type":"application/pdf","checksum":"b472bc82108747eda5d52adf9e2ac7f3","creator":"dernst","access_level":"open_access"}],"corr_author":"1","title":"Stochastic representation of the quantum quartic oscillator","year":"2023"},{"isi":1,"title":"Monitoring and active stabilization of laser injection locking using beam ellipticity","corr_author":"1","year":"2023","page":"3973-3976","user_id":"317138e5-6ab7-11ef-aa6d-ffef3953e345","doi":"10.1364/ol.495553","publisher":"Optica Publishing Group","author":[{"last_name":"Mishra","first_name":"Umang","id":"4328fa4c-f128-11eb-9611-c107b0fe4d51","full_name":"Mishra, Umang"},{"full_name":"Li, Vyacheslav","id":"3A4FAA92-F248-11E8-B48F-1D18A9856A87","first_name":"Vyacheslav","last_name":"Li"},{"last_name":"Wald","first_name":"Sebastian","id":"133F200A-B015-11E9-AD41-0EDAE5697425","full_name":"Wald, Sebastian","orcid":"0000-0002-5869-1604"},{"orcid":"0000-0003-0582-2946","last_name":"Agafonova","id":"09501ff6-dca7-11ea-a8ae-b3e0b9166e80","full_name":"Agafonova, Sofya","first_name":"Sofya"},{"first_name":"Fritz R","id":"2E054C4C-F248-11E8-B48F-1D18A9856A87","full_name":"Diorico, Fritz R","last_name":"Diorico","orcid":"0000-0002-4947-8924"},{"last_name":"Hosten","full_name":"Hosten, Onur","id":"4C02D85E-F248-11E8-B48F-1D18A9856A87","first_name":"Onur","orcid":"0000-0002-2031-204X"}],"main_file_link":[{"open_access":"1","url":"https://doi.org/10.48550/arXiv.2212.01266"}],"status":"public","month":"07","issue":"15","article_type":"original","_id":"14749","quality_controlled":"1","publication_status":"published","type":"journal_article","abstract":[{"lang":"eng","text":"We unveil a powerful method for the stabilization of laser injection locking based on sensing variations in the output beam ellipticity of an optically seeded laser. The effect arises due to an interference between the seeding beam and the injected laser output. We demonstrate the method for a commercial semiconductor laser without the need for any internal changes to the readily operational injection locked laser system that was used. The method can also be used to increase the mode-hop free tuning range of lasers, and has the potential to fill a void in the low-noise laser industry."}],"date_created":"2024-01-08T13:01:46Z","date_updated":"2025-12-16T12:52:55Z","citation":{"apa":"Mishra, U., Li, V., Wald, S., Agafonova, S., Diorico, F. R., &#38; Hosten, O. (2023). Monitoring and active stabilization of laser injection locking using beam ellipticity. <i>Optics Letters</i>. Optica Publishing Group. <a href=\"https://doi.org/10.1364/ol.495553\">https://doi.org/10.1364/ol.495553</a>","chicago":"Mishra, Umang, Vyacheslav Li, Sebastian Wald, Sofya Agafonova, Fritz R Diorico, and Onur Hosten. “Monitoring and Active Stabilization of Laser Injection Locking Using Beam Ellipticity.” <i>Optics Letters</i>. Optica Publishing Group, 2023. <a href=\"https://doi.org/10.1364/ol.495553\">https://doi.org/10.1364/ol.495553</a>.","ieee":"U. Mishra, V. Li, S. Wald, S. Agafonova, F. R. Diorico, and O. Hosten, “Monitoring and active stabilization of laser injection locking using beam ellipticity,” <i>Optics Letters</i>, vol. 48, no. 15. Optica Publishing Group, pp. 3973–3976, 2023.","mla":"Mishra, Umang, et al. “Monitoring and Active Stabilization of Laser Injection Locking Using Beam Ellipticity.” <i>Optics Letters</i>, vol. 48, no. 15, Optica Publishing Group, 2023, pp. 3973–76, doi:<a href=\"https://doi.org/10.1364/ol.495553\">10.1364/ol.495553</a>.","ista":"Mishra U, Li V, Wald S, Agafonova S, Diorico FR, Hosten O. 2023. Monitoring and active stabilization of laser injection locking using beam ellipticity. Optics Letters. 48(15), 3973–3976.","short":"U. Mishra, V. Li, S. Wald, S. Agafonova, F.R. Diorico, O. Hosten, Optics Letters 48 (2023) 3973–3976.","ama":"Mishra U, Li V, Wald S, Agafonova S, Diorico FR, Hosten O. Monitoring and active stabilization of laser injection locking using beam ellipticity. <i>Optics Letters</i>. 2023;48(15):3973-3976. doi:<a href=\"https://doi.org/10.1364/ol.495553\">10.1364/ol.495553</a>"},"oa":1,"arxiv":1,"article_processing_charge":"No","oa_version":"Preprint","scopus_import":"1","publication_identifier":{"eissn":["1539-4794"],"issn":["0146-9592"]},"keyword":["Atomic and Molecular Physics","and Optics"],"date_published":"2023-07-21T00:00:00Z","department":[{"_id":"OnHo"}],"volume":48,"language":[{"iso":"eng"}],"day":"21","intvolume":"        48","publication":"Optics Letters","external_id":{"isi":["001051044600008"],"arxiv":["2212.01266"]}},{"external_id":{"arxiv":["2208.11591"],"isi":["000906607900001"]},"publication":"Applied Optics","intvolume":"        62","day":"01","volume":62,"language":[{"iso":"eng"}],"department":[{"_id":"OnHo"}],"keyword":["Atomic and Molecular Physics","and Optics","Engineering (miscellaneous)","Electrical and Electronic Engineering"],"date_published":"2023-01-01T00:00:00Z","publication_identifier":{"issn":["1559-128X"],"eissn":["2155-3165"]},"oa_version":"Preprint","scopus_import":"1","article_processing_charge":"No","acknowledgement":"We thank Jakob Vorlaufer for technical contributions and Vyacheslav Li and Sofia Agafonova for comments on the manuscript.","oa":1,"citation":{"ama":"Wald S, Diorico FR, Hosten O. Analog stabilization of an electro-optic I/Q modulator with an auxiliary modulation tone. <i>Applied Optics</i>. 2023;62(1):1-7. doi:<a href=\"https://doi.org/10.1364/ao.474118\">10.1364/ao.474118</a>","ista":"Wald S, Diorico FR, Hosten O. 2023. Analog stabilization of an electro-optic I/Q modulator with an auxiliary modulation tone. Applied Optics. 62(1), 1–7.","short":"S. Wald, F.R. Diorico, O. Hosten, Applied Optics 62 (2023) 1–7.","ieee":"S. Wald, F. R. Diorico, and O. Hosten, “Analog stabilization of an electro-optic I/Q modulator with an auxiliary modulation tone,” <i>Applied Optics</i>, vol. 62, no. 1. Optica Publishing Group, pp. 1–7, 2023.","mla":"Wald, Sebastian, et al. “Analog Stabilization of an Electro-Optic I/Q Modulator with an Auxiliary Modulation Tone.” <i>Applied Optics</i>, vol. 62, no. 1, Optica Publishing Group, 2023, pp. 1–7, doi:<a href=\"https://doi.org/10.1364/ao.474118\">10.1364/ao.474118</a>.","chicago":"Wald, Sebastian, Fritz R Diorico, and Onur Hosten. “Analog Stabilization of an Electro-Optic I/Q Modulator with an Auxiliary Modulation Tone.” <i>Applied Optics</i>. Optica Publishing Group, 2023. <a href=\"https://doi.org/10.1364/ao.474118\">https://doi.org/10.1364/ao.474118</a>.","apa":"Wald, S., Diorico, F. R., &#38; Hosten, O. (2023). Analog stabilization of an electro-optic I/Q modulator with an auxiliary modulation tone. <i>Applied Optics</i>. Optica Publishing Group. <a href=\"https://doi.org/10.1364/ao.474118\">https://doi.org/10.1364/ao.474118</a>"},"arxiv":1,"date_updated":"2026-04-07T12:35:11Z","abstract":[{"lang":"eng","text":"Proper operation of electro-optic I/Q modulators relies on precise adjustment and control of the relative phase biases between the modulator’s internal interferometer arms. We present an all-analog phase bias locking scheme where error signals are obtained from the beat between the optical carrier and optical tones generated by an auxiliary 2 MHz 𝑅𝐹 tone to lock the phases of all three involved interferometers for operation up to 10 GHz. With the developed method, we demonstrate an I/Q modulator in carrier-suppressed single-sideband mode, where the suppressed carrier and sideband are locked at optical power levels <−27dB\r\n relative to the transmitted sideband. We describe a simple analytical model for calculating the error signals and detail the implementation of the electronic circuitry for the implementation of the method."}],"date_created":"2024-01-08T13:19:14Z","type":"journal_article","quality_controlled":"1","publication_status":"published","_id":"14759","article_type":"original","issue":"1","related_material":{"record":[{"relation":"dissertation_contains","status":"public","id":"20798"}]},"month":"01","main_file_link":[{"url":"https://doi.org/10.48550/arXiv.2208.11591","open_access":"1"}],"status":"public","author":[{"last_name":"Wald","first_name":"Sebastian","id":"133F200A-B015-11E9-AD41-0EDAE5697425","full_name":"Wald, Sebastian","orcid":"0000-0002-5869-1604"},{"orcid":"0000-0002-4947-8924","first_name":"Fritz R","full_name":"Diorico, Fritz R","id":"2E054C4C-F248-11E8-B48F-1D18A9856A87","last_name":"Diorico"},{"id":"4C02D85E-F248-11E8-B48F-1D18A9856A87","full_name":"Hosten, Onur","first_name":"Onur","last_name":"Hosten","orcid":"0000-0002-2031-204X"}],"publisher":"Optica Publishing Group","doi":"10.1364/ao.474118","user_id":"317138e5-6ab7-11ef-aa6d-ffef3953e345","page":"1-7","title":"Analog stabilization of an electro-optic I/Q modulator with an auxiliary modulation tone","corr_author":"1","isi":1,"year":"2023"},{"date_updated":"2026-04-15T06:43:26Z","tmp":{"short":"CC BY-NC-SA (4.0)","legal_code_url":"https://creativecommons.org/licenses/by-nc-sa/4.0/legalcode","image":"/images/cc_by_nc_sa.png","name":"Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International (CC BY-NC-SA 4.0)"},"oa":1,"citation":{"mla":"Sahu, Rishabh. <i>Cavity Quantum Electrooptics</i>. Institute of Science and Technology Austria, 2023, doi:<a href=\"https://doi.org/10.15479/at:ista:13175\">10.15479/at:ista:13175</a>.","ieee":"R. Sahu, “Cavity quantum electrooptics,” Institute of Science and Technology Austria, 2023.","chicago":"Sahu, Rishabh. “Cavity Quantum Electrooptics.” Institute of Science and Technology Austria, 2023. <a href=\"https://doi.org/10.15479/at:ista:13175\">https://doi.org/10.15479/at:ista:13175</a>.","apa":"Sahu, R. (2023). <i>Cavity quantum electrooptics</i>. Institute of Science and Technology Austria. <a href=\"https://doi.org/10.15479/at:ista:13175\">https://doi.org/10.15479/at:ista:13175</a>","ama":"Sahu R. Cavity quantum electrooptics. 2023. doi:<a href=\"https://doi.org/10.15479/at:ista:13175\">10.15479/at:ista:13175</a>","ista":"Sahu R. 2023. Cavity quantum electrooptics. Institute of Science and Technology Austria.","short":"R. Sahu, Cavity Quantum Electrooptics, Institute of Science and Technology Austria, 2023."},"type":"dissertation","abstract":[{"text":"About a 100 years ago, we discovered that our universe is inherently noisy, that is, measuring any physical quantity with a precision beyond a certain point is not possible because of an omnipresent inherent noise. We call this - the quantum noise. Certain physical processes allow this quantum noise to get correlated in conjugate physical variables. These quantum correlations can be used to go beyond the potential of our inherently noisy universe and obtain a quantum advantage over the classical applications. \r\n\r\nQuantum noise being inherent also means that, at the fundamental level, the physical quantities are not well defined and therefore, objects can stay in multiple states at the same time. For example, the position of a particle not being well defined means that the particle is in multiple positions at the same time. About 4 decades ago, we started exploring the possibility of using objects which can be in multiple states at the same time to increase the dimensionality in computation. Thus, the field of quantum computing was born. We discovered that using quantum entanglement, a property closely related to quantum correlations, can be used to speed up computation of certain problems, such as factorisation of large numbers, faster than any known classical algorithm. Thus began the pursuit to make quantum computers a reality. \r\n\r\nTill date, we have explored quantum control over many physical systems including photons, spins, atoms, ions and even simple circuits made up of superconducting material. However, there persists one ubiquitous theme. The more readily a system interacts with an external field or matter, the more easily we can control it. But this also means that such a system can easily interact with a noisy environment and quickly lose its coherence. Consequently, such systems like electron spins need to be protected from the environment to ensure the longevity of their coherence. Other systems like nuclear spins are naturally protected as they do not interact easily with the environment. But, due to the same reason, it is harder to interact with such systems. \r\n\r\nAfter decades of experimentation with various systems, we are convinced that no one type of quantum system would be the best for all the quantum applications. We would need hybrid systems which are all interconnected - much like the current internet where all sorts of devices can all talk to each other - but now for quantum devices. A quantum internet. \r\n\r\nOptical photons are the best contenders to carry information for the quantum internet. They can carry quantum information cheaply and without much loss - the same reasons which has made them the backbone of our current internet. Following this direction, many systems, like trapped ions, have already demonstrated successful quantum links over a large distances using optical photons. However, some of the most promising contenders for quantum computing which are based on microwave frequencies have been left behind. This is because high energy optical photons can adversely affect fragile low-energy microwave systems. \r\n\r\nIn this thesis, we present substantial progress on this missing quantum link between microwave and optics using electrooptical nonlinearities in lithium niobate. The nonlinearities are enhanced by using resonant cavities for all the involved modes leading to observation of strong direct coupling between optical and microwave frequencies. With this strong coupling we are not only able to achieve almost 100\\% internal conversion efficiency with low added noise, thus presenting a quantum-enabled transducer, but also we are able to observe novel effects such as cooling of a microwave mode using optics. The strong coupling regime also leads to direct observation of dynamical backaction effect between microwave and optical frequencies which are studied in detail here. Finally, we also report first observation of microwave-optics entanglement in form of two-mode squeezed vacuum squeezed 0.7dB below vacuum level. \r\nWith this new bridge between microwave and optics, the microwave-based quantum technologies can finally be a part of a quantum network which is based on optical photons - putting us one step closer to a future with quantum internet. ","lang":"eng"}],"date_created":"2023-06-30T08:07:43Z","article_processing_charge":"No","publication_identifier":{"isbn":["978-3-99078-030-5"],"issn":["2663-337X"]},"oa_version":"Published Version","keyword":["quantum optics","electrooptics","quantum networks","quantum communication","transduction"],"date_published":"2023-05-05T00:00:00Z","degree_awarded":"PhD","language":[{"iso":"eng"}],"ddc":["537","535","539"],"department":[{"_id":"GradSch"},{"_id":"JoFi"}],"day":"05","ec_funded":1,"has_accepted_license":"1","alternative_title":["ISTA Thesis"],"title":"Cavity quantum electrooptics","year":"2023","corr_author":"1","file":[{"relation":"main_file","content_type":"application/pdf","checksum":"7d03f1a5a5258ee43dfc3323dea4e08f","creator":"cchlebak","access_level":"open_access","file_size":18688376,"date_created":"2023-06-30T08:17:25Z","file_name":"thesis_pdfa.pdf","file_id":"13176","date_updated":"2023-06-30T08:17:25Z","success":1},{"content_type":"application/x-zip-compressed","relation":"source_file","creator":"cchlebak","checksum":"c3b45317ae58e0527533f98c202d81b7","access_level":"closed","file_size":37847025,"file_name":"thesis.zip","date_created":"2023-07-06T11:35:15Z","date_updated":"2023-07-06T11:35:15Z","file_id":"13196"}],"page":"202","license":"https://creativecommons.org/licenses/by-nc-sa/4.0/","acknowledged_ssus":[{"_id":"M-Shop"},{"_id":"SSU"},{"_id":"NanoFab"}],"user_id":"ba8df636-2132-11f1-aed0-ed93e2281fdd","publisher":"Institute of Science and Technology Austria","doi":"10.15479/at:ista:13175","author":[{"first_name":"Rishabh","full_name":"Sahu, Rishabh","id":"47D26E34-F248-11E8-B48F-1D18A9856A87","last_name":"Sahu","orcid":"0000-0001-6264-2162"}],"supervisor":[{"orcid":"0000-0001-8112-028X","last_name":"Fink","first_name":"Johannes M","full_name":"Fink, Johannes M","id":"4B591CBA-F248-11E8-B48F-1D18A9856A87"}],"project":[{"call_identifier":"H2020","grant_number":"758053","_id":"26336814-B435-11E9-9278-68D0E5697425","name":"A Fiber Optic Transceiver for Superconducting Qubits"},{"name":"Quantum Local Area Networks with Superconducting Qubits","grant_number":"899354","call_identifier":"H2020","_id":"9B868D20-BA93-11EA-9121-9846C619BF3A"},{"name":"QUANTUM INFORMATION SYSTEMS BEYOND CLASSICAL CAPABILITIES / P5- Integration of Superconducting Quantum Circuits","grant_number":"F07105","_id":"bdb108fd-d553-11ed-ba76-83dc74a9864f"}],"related_material":{"record":[{"status":"public","relation":"old_edition","id":"12900"},{"id":"10924","relation":"part_of_dissertation","status":"public"},{"status":"public","relation":"part_of_dissertation","id":"9114"}]},"status":"public","OA_place":"publisher","month":"05","_id":"13175","file_date_updated":"2023-07-06T11:35:15Z","publication_status":"published"},{"ec_funded":1,"day":"05","alternative_title":["ISTA Thesis"],"has_accepted_license":"1","degree_awarded":"PhD","date_published":"2023-05-05T00:00:00Z","keyword":["quantum optics","electrooptics","quantum networks","quantum communication","transduction"],"department":[{"_id":"GradSch"},{"_id":"JoFi"}],"ddc":["537","535","539"],"language":[{"iso":"eng"}],"oa_version":"Published Version","publication_identifier":{"issn":["2663-337X"],"isbn":["978-3-99078-030-5"]},"abstract":[{"lang":"eng","text":"About a 100 years ago, we discovered that our universe is inherently noisy, that is, measuring any physical quantity with a precision beyond a certain point is not possible because of an omnipresent inherent noise. We call this - the quantum noise. Certain physical processes allow this quantum noise to get correlated in conjugate physical variables. These quantum correlations can be used to go beyond the potential of our inherently noisy universe and obtain a quantum advantage over the classical applications. \r\n\r\nQuantum noise being inherent also means that, at the fundamental level, the physical quantities are not well defined and therefore, objects can stay in multiple states at the same time. For example, the position of a particle not being well defined means that the particle is in multiple positions at the same time. About 4 decades ago, we started exploring the possibility of using objects which can be in multiple states at the same time to increase the dimensionality in computation. Thus, the field of quantum computing was born. We discovered that using quantum entanglement, a property closely related to quantum correlations, can be used to speed up computation of certain problems, such as factorisation of large numbers, faster than any known classical algorithm. Thus began the pursuit to make quantum computers a reality. \r\n\r\nTill date, we have explored quantum control over many physical systems including photons, spins, atoms, ions and even simple circuits made up of superconducting material. However, there persists one ubiquitous theme. The more readily a system interacts with an external field or matter, the more easily we can control it. But this also means that such a system can easily interact with a noisy environment and quickly lose its coherence. Consequently, such systems like electron spins need to be protected from the environment to ensure the longevity of their coherence. Other systems like nuclear spins are naturally protected as they do not interact easily with the environment. But, due to the same reason, it is harder to interact with such systems. \r\n\r\nAfter decades of experimentation with various systems, we are convinced that no one type of quantum system would be the best for all the quantum applications. We would need hybrid systems which are all interconnected - much like the current internet where all sorts of devices can all talk to each other - but now for quantum devices. A quantum internet. \r\n\r\nOptical photons are the best contenders to carry information for the quantum internet. They can carry quantum information cheaply and without much loss - the same reasons which has made them the backbone of our current internet. Following this direction, many systems, like trapped ions, have already demonstrated successful quantum links over a large distances using optical photons. However, some of the most promising contenders for quantum computing which are based on microwave frequencies have been left behind. This is because high energy optical photons can adversely affect fragile low-energy microwave systems. \r\n\r\nIn this thesis, we present substantial progress on this missing quantum link between microwave and optics using electrooptical nonlinearities in lithium niobate. The nonlinearities are enhanced by using resonant cavities for all the involved modes leading to observation of strong direct coupling between optical and microwave frequencies. With this strong coupling we are not only able to achieve almost 100\\% internal conversion efficiency with low added noise, thus presenting a quantum-enabled transducer, but also we are able to observe novel effects such as cooling of a microwave mode using optics. The strong coupling regime also leads to direct observation of dynamical backaction effect between microwave and optical frequencies which are studied in detail here. Finally, we also report first observation of microwave-optics entanglement in form of two-mode squeezed vacuum squeezed 0.7dB below vacuum level. \r\nWith this new bridge between microwave and optics, the microwave-based quantum technologies can finally be a part of a quantum network which is based on optical photons - putting us one step closer to a future with quantum internet. "}],"date_created":"2023-05-05T11:08:50Z","type":"dissertation","citation":{"chicago":"Sahu, Rishabh. “Cavity Quantum Electrooptics.” Institute of Science and Technology Austria, 2023. <a href=\"https://doi.org/10.15479/at:ista:12900\">https://doi.org/10.15479/at:ista:12900</a>.","apa":"Sahu, R. (2023). <i>Cavity quantum electrooptics</i>. Institute of Science and Technology Austria. <a href=\"https://doi.org/10.15479/at:ista:12900\">https://doi.org/10.15479/at:ista:12900</a>","mla":"Sahu, Rishabh. <i>Cavity Quantum Electrooptics</i>. Institute of Science and Technology Austria, 2023, doi:<a href=\"https://doi.org/10.15479/at:ista:12900\">10.15479/at:ista:12900</a>.","ieee":"R. Sahu, “Cavity quantum electrooptics,” Institute of Science and Technology Austria, 2023.","ama":"Sahu R. Cavity quantum electrooptics. 2023. doi:<a href=\"https://doi.org/10.15479/at:ista:12900\">10.15479/at:ista:12900</a>","ista":"Sahu R. 2023. Cavity quantum electrooptics. Institute of Science and Technology Austria.","short":"R. Sahu, Cavity Quantum Electrooptics, Institute of Science and Technology Austria, 2023."},"date_updated":"2026-04-15T06:43:26Z","tmp":{"short":"CC BY-NC-SA (4.0)","legal_code_url":"https://creativecommons.org/licenses/by-nc-sa/4.0/legalcode","image":"/images/cc_by_nc_sa.png","name":"Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International (CC BY-NC-SA 4.0)"},"article_processing_charge":"No","file_date_updated":"2023-07-06T11:37:40Z","_id":"12900","publication_status":"published","project":[{"grant_number":"758053","call_identifier":"H2020","_id":"26336814-B435-11E9-9278-68D0E5697425","name":"A Fiber Optic Transceiver for Superconducting Qubits"},{"_id":"9B868D20-BA93-11EA-9121-9846C619BF3A","grant_number":"899354","call_identifier":"H2020","name":"Quantum Local Area Networks with Superconducting Qubits"},{"name":"QUANTUM INFORMATION SYSTEMS BEYOND CLASSICAL CAPABILITIES / P5- Integration of Superconducting Quantum Circuits","_id":"bdb108fd-d553-11ed-ba76-83dc74a9864f","grant_number":"F07105"}],"supervisor":[{"orcid":"0000-0001-8112-028X","first_name":"Johannes M","id":"4B591CBA-F248-11E8-B48F-1D18A9856A87","full_name":"Fink, Johannes M","last_name":"Fink"}],"author":[{"last_name":"Sahu","id":"47D26E34-F248-11E8-B48F-1D18A9856A87","full_name":"Sahu, Rishabh","first_name":"Rishabh","orcid":"0000-0001-6264-2162"}],"month":"05","OA_place":"publisher","status":"public","related_material":{"record":[{"status":"public","relation":"new_edition","id":"13175"},{"status":"public","relation":"part_of_dissertation","id":"10924"},{"relation":"part_of_dissertation","status":"public","id":"9114"}]},"user_id":"ba8df636-2132-11f1-aed0-ed93e2281fdd","acknowledged_ssus":[{"_id":"M-Shop"},{"_id":"SSU"},{"_id":"NanoFab"}],"doi":"10.15479/at:ista:12900","publisher":"Institute of Science and Technology Austria","corr_author":"1","title":"Cavity quantum electrooptics","year":"2023","page":"190","file":[{"date_created":"2023-05-09T08:45:14Z","file_name":"thesis.zip","file_id":"12928","date_updated":"2023-06-06T22:30:03Z","file_size":36767177,"checksum":"8cbdab9c37ee55e591092a6f66b272c4","creator":"rsahu","access_level":"closed","content_type":"application/x-zip-compressed","relation":"source_file","embargo_to":"open_access"},{"file_name":"thesis_pdfa_final.pdf","date_created":"2023-05-09T08:51:17Z","date_updated":"2023-07-06T11:37:40Z","file_id":"12929","file_size":17501990,"creator":"rsahu","checksum":"439659ead46618147309be39d9dd5a8c","access_level":"closed","relation":"main_file","content_type":"application/pdf"}]},{"doi":"10.1038/s41566-022-01050-7","publisher":"Springer Nature","user_id":"2DF688A6-F248-11E8-B48F-1D18A9856A87","extern":"1","page":"620-624","year":"2022","title":"Probing topological phase transitions using high-harmonic generation","quality_controlled":"1","publication_status":"published","article_type":"original","issue":"9","_id":"13991","month":"09","status":"public","author":[{"last_name":"Heide","first_name":"Christian","full_name":"Heide, Christian"},{"last_name":"Kobayashi","first_name":"Yuki","full_name":"Kobayashi, Yuki"},{"last_name":"Baykusheva","full_name":"Baykusheva, Denitsa Rangelova","id":"71b4d059-2a03-11ee-914d-dfa3beed6530","first_name":"Denitsa Rangelova"},{"last_name":"Jain","full_name":"Jain, Deepti","first_name":"Deepti"},{"full_name":"Sobota, Jonathan A.","first_name":"Jonathan A.","last_name":"Sobota"},{"first_name":"Makoto","full_name":"Hashimoto, Makoto","last_name":"Hashimoto"},{"last_name":"Kirchmann","first_name":"Patrick S.","full_name":"Kirchmann, Patrick S."},{"last_name":"Oh","full_name":"Oh, Seongshik","first_name":"Seongshik"},{"last_name":"Heinz","first_name":"Tony F.","full_name":"Heinz, Tony F."},{"full_name":"Reis, David A.","first_name":"David A.","last_name":"Reis"},{"full_name":"Ghimire, Shambhu","first_name":"Shambhu","last_name":"Ghimire"}],"oa_version":"None","scopus_import":"1","publication_identifier":{"issn":["1749-4885"],"eissn":["1749-4893"]},"article_processing_charge":"No","date_created":"2023-08-09T13:07:51Z","abstract":[{"text":"The prediction and realization of topological insulators have sparked great interest in experimental approaches to the classification of materials1,2,3. The phase transition between non-trivial and trivial topological states is important, not only for basic materials science but also for next-generation technology, such as dissipation-free electronics4. It is therefore crucial to develop advanced probes that are suitable for a wide range of samples and environments. Here we demonstrate that circularly polarized laser-field-driven high-harmonic generation is distinctly sensitive to the non-trivial and trivial topological phases in the prototypical three-dimensional topological insulator bismuth selenide5. The phase transition is chemically initiated by reducing the spin–orbit interaction strength through the substitution of bismuth with indium atoms6,7. We find strikingly different high-harmonic responses of trivial and non-trivial topological surface states that manifest themselves as a conversion efficiency and elliptical dichroism that depend both on the driving laser ellipticity and the crystal orientation. The origins of the anomalous high-harmonic response are corroborated by calculations using the semiconductor optical Bloch equations with pairs of surface and bulk bands. As a purely optical approach, this method offers sensitivity to the electronic structure of the material, including its nonlinear response, and is compatible with a wide range of samples and sample environments.","lang":"eng"}],"type":"journal_article","citation":{"ieee":"C. Heide <i>et al.</i>, “Probing topological phase transitions using high-harmonic generation,” <i>Nature Photonics</i>, vol. 16, no. 9. Springer Nature, pp. 620–624, 2022.","mla":"Heide, Christian, et al. “Probing Topological Phase Transitions Using High-Harmonic Generation.” <i>Nature Photonics</i>, vol. 16, no. 9, Springer Nature, 2022, pp. 620–24, doi:<a href=\"https://doi.org/10.1038/s41566-022-01050-7\">10.1038/s41566-022-01050-7</a>.","chicago":"Heide, Christian, Yuki Kobayashi, Denitsa Rangelova Baykusheva, Deepti Jain, Jonathan A. Sobota, Makoto Hashimoto, Patrick S. Kirchmann, et al. “Probing Topological Phase Transitions Using High-Harmonic Generation.” <i>Nature Photonics</i>. Springer Nature, 2022. <a href=\"https://doi.org/10.1038/s41566-022-01050-7\">https://doi.org/10.1038/s41566-022-01050-7</a>.","apa":"Heide, C., Kobayashi, Y., Baykusheva, D. R., Jain, D., Sobota, J. A., Hashimoto, M., … Ghimire, S. (2022). Probing topological phase transitions using high-harmonic generation. <i>Nature Photonics</i>. Springer Nature. <a href=\"https://doi.org/10.1038/s41566-022-01050-7\">https://doi.org/10.1038/s41566-022-01050-7</a>","short":"C. Heide, Y. Kobayashi, D.R. Baykusheva, D. Jain, J.A. Sobota, M. Hashimoto, P.S. Kirchmann, S. Oh, T.F. Heinz, D.A. Reis, S. Ghimire, Nature Photonics 16 (2022) 620–624.","ista":"Heide C, Kobayashi Y, Baykusheva DR, Jain D, Sobota JA, Hashimoto M, Kirchmann PS, Oh S, Heinz TF, Reis DA, Ghimire S. 2022. Probing topological phase transitions using high-harmonic generation. Nature Photonics. 16(9), 620–624.","ama":"Heide C, Kobayashi Y, Baykusheva DR, et al. Probing topological phase transitions using high-harmonic generation. <i>Nature Photonics</i>. 2022;16(9):620-624. doi:<a href=\"https://doi.org/10.1038/s41566-022-01050-7\">10.1038/s41566-022-01050-7</a>"},"date_updated":"2023-08-22T07:20:09Z","publication":"Nature Photonics","intvolume":"        16","day":"01","language":[{"iso":"eng"}],"volume":16,"date_published":"2022-09-01T00:00:00Z","keyword":["Atomic and Molecular Physics","and Optics","Electronic","Optical and Magnetic Materials"]},{"author":[{"first_name":"Jiarong","full_name":"Cai, Jiarong","last_name":"Cai"},{"full_name":"Zhang, Wei","first_name":"Wei","last_name":"Zhang"},{"full_name":"Xu, Liguang","first_name":"Liguang","last_name":"Xu"},{"last_name":"Hao","first_name":"Changlong","full_name":"Hao, Changlong"},{"full_name":"Ma, Wei","first_name":"Wei","last_name":"Ma"},{"full_name":"Sun, Maozhong","first_name":"Maozhong","last_name":"Sun"},{"last_name":"Wu","full_name":"Wu, Xiaoling","first_name":"Xiaoling"},{"first_name":"Xian","full_name":"Qin, Xian","last_name":"Qin"},{"last_name":"Colombari","full_name":"Colombari, Felippe Mariano","first_name":"Felippe Mariano"},{"full_name":"de Moura, André Farias","first_name":"André Farias","last_name":"de Moura"},{"first_name":"Jiahui","full_name":"Xu, Jiahui","last_name":"Xu"},{"last_name":"Silva","full_name":"Silva, Mariana Cristina","first_name":"Mariana Cristina"},{"last_name":"Carneiro-Neto","full_name":"Carneiro-Neto, Evaldo Batista","first_name":"Evaldo Batista"},{"last_name":"Gomes","full_name":"Gomes, Weverson Rodrigues","first_name":"Weverson Rodrigues"},{"last_name":"Vallée","full_name":"Vallée, Renaud A. L.","first_name":"Renaud A. L."},{"last_name":"Pereira","full_name":"Pereira, Ernesto Chaves","first_name":"Ernesto Chaves"},{"first_name":"Xiaogang","full_name":"Liu, Xiaogang","last_name":"Liu"},{"first_name":"Chuanlai","full_name":"Xu, Chuanlai","last_name":"Xu"},{"last_name":"Klajn","id":"8e84690e-1e48-11ed-a02b-a1e6fb8bb53b","full_name":"Klajn, Rafal","first_name":"Rafal"},{"full_name":"Kotov, Nicholas A.","first_name":"Nicholas A.","last_name":"Kotov"},{"full_name":"Kuang, Hua","first_name":"Hua","last_name":"Kuang"}],"main_file_link":[{"url":"https://hal.science/hal-03623036/","open_access":"1"}],"status":"public","month":"03","_id":"13352","issue":"4","article_type":"original","publication_status":"published","quality_controlled":"1","title":"Polarization-sensitive optoionic membranes from chiral plasmonic nanoparticles","year":"2022","page":"408-416","extern":"1","user_id":"2DF688A6-F248-11E8-B48F-1D18A9856A87","publisher":"Springer Nature","doi":"10.1038/s41565-022-01079-3","keyword":["Electrical and Electronic Engineering","Condensed Matter Physics","General Materials Science","Biomedical Engineering","Atomic and Molecular Physics","and Optics","Bioengineering"],"date_published":"2022-03-14T00:00:00Z","language":[{"iso":"eng"}],"volume":17,"day":"14","intvolume":"        17","external_id":{"pmid":["35288671"]},"publication":"Nature Nanotechnology","date_updated":"2024-10-14T12:10:13Z","oa":1,"citation":{"apa":"Cai, J., Zhang, W., Xu, L., Hao, C., Ma, W., Sun, M., … Kuang, H. (2022). Polarization-sensitive optoionic membranes from chiral plasmonic nanoparticles. <i>Nature Nanotechnology</i>. Springer Nature. <a href=\"https://doi.org/10.1038/s41565-022-01079-3\">https://doi.org/10.1038/s41565-022-01079-3</a>","chicago":"Cai, Jiarong, Wei Zhang, Liguang Xu, Changlong Hao, Wei Ma, Maozhong Sun, Xiaoling Wu, et al. “Polarization-Sensitive Optoionic Membranes from Chiral Plasmonic Nanoparticles.” <i>Nature Nanotechnology</i>. Springer Nature, 2022. <a href=\"https://doi.org/10.1038/s41565-022-01079-3\">https://doi.org/10.1038/s41565-022-01079-3</a>.","ieee":"J. Cai <i>et al.</i>, “Polarization-sensitive optoionic membranes from chiral plasmonic nanoparticles,” <i>Nature Nanotechnology</i>, vol. 17, no. 4. Springer Nature, pp. 408–416, 2022.","mla":"Cai, Jiarong, et al. “Polarization-Sensitive Optoionic Membranes from Chiral Plasmonic Nanoparticles.” <i>Nature Nanotechnology</i>, vol. 17, no. 4, Springer Nature, 2022, pp. 408–16, doi:<a href=\"https://doi.org/10.1038/s41565-022-01079-3\">10.1038/s41565-022-01079-3</a>.","ama":"Cai J, Zhang W, Xu L, et al. Polarization-sensitive optoionic membranes from chiral plasmonic nanoparticles. <i>Nature Nanotechnology</i>. 2022;17(4):408-416. doi:<a href=\"https://doi.org/10.1038/s41565-022-01079-3\">10.1038/s41565-022-01079-3</a>","ista":"Cai J, Zhang W, Xu L, Hao C, Ma W, Sun M, Wu X, Qin X, Colombari FM, de Moura AF, Xu J, Silva MC, Carneiro-Neto EB, Gomes WR, Vallée RAL, Pereira EC, Liu X, Xu C, Klajn R, Kotov NA, Kuang H. 2022. Polarization-sensitive optoionic membranes from chiral plasmonic nanoparticles. Nature Nanotechnology. 17(4), 408–416.","short":"J. Cai, W. Zhang, L. Xu, C. Hao, W. Ma, M. Sun, X. Wu, X. Qin, F.M. Colombari, A.F. de Moura, J. Xu, M.C. Silva, E.B. Carneiro-Neto, W.R. Gomes, R.A.L. Vallée, E.C. Pereira, X. Liu, C. Xu, R. Klajn, N.A. Kotov, H. Kuang, Nature Nanotechnology 17 (2022) 408–416."},"type":"journal_article","date_created":"2023-08-01T09:32:40Z","abstract":[{"text":"Optoelectronic effects differentiating absorption of right and left circularly polarized photons in thin films of chiral materials are typically prohibitively small for their direct photocurrent observation. Chiral metasurfaces increase the electronic sensitivity to circular polarization, but their out-of-plane architecture entails manufacturing and performance trade-offs. Here, we show that nanoporous thin films of chiral nanoparticles enable high sensitivity to circular polarization due to light-induced polarization-dependent ion accumulation at nanoparticle interfaces. Self-assembled multilayers of gold nanoparticles modified with L-phenylalanine generate a photocurrent under right-handed circularly polarized light as high as 2.41 times higher than under left-handed circularly polarized light. The strong plasmonic coupling between the multiple nanoparticles producing planar chiroplasmonic modes facilitates the ejection of electrons, whose entrapment at the membrane–electrolyte interface is promoted by a thick layer of enantiopure phenylalanine. Demonstrated detection of light ellipticity with equal sensitivity at all incident angles mimics phenomenological aspects of polarization vision in marine animals. The simplicity of self-assembly and sensitivity of polarization detection found in optoionic membranes opens the door to a family of miniaturized fluidic devices for chiral photonics.","lang":"eng"}],"article_processing_charge":"No","pmid":1,"publication_identifier":{"eissn":["1748-3395"],"issn":["1748-3387"]},"oa_version":"Published Version","scopus_import":"1"},{"article_type":"original","_id":"13367","publication_status":"published","quality_controlled":"1","author":[{"first_name":"Angela B.","full_name":"Grommet, Angela B.","last_name":"Grommet"},{"full_name":"Feller, Moran","first_name":"Moran","last_name":"Feller"},{"last_name":"Klajn","first_name":"Rafal","full_name":"Klajn, Rafal","id":"8e84690e-1e48-11ed-a02b-a1e6fb8bb53b"}],"month":"04","status":"public","user_id":"2DF688A6-F248-11E8-B48F-1D18A9856A87","doi":"10.1038/s41565-020-0652-2","publisher":"Springer Nature","title":"Chemical reactivity under nanoconfinement","year":"2020","extern":"1","page":"256-271","intvolume":"        15","day":"17","publication":"Nature Nanotechnology","external_id":{"pmid":["32303705"]},"keyword":["Electrical and Electronic Engineering","Condensed Matter Physics","General Materials Science","Biomedical Engineering","Atomic and Molecular Physics","and Optics","Bioengineering"],"date_published":"2020-04-17T00:00:00Z","language":[{"iso":"eng"}],"volume":15,"pmid":1,"scopus_import":"1","oa_version":"None","publication_identifier":{"eissn":["1748-3395"],"issn":["1748-3387"]},"date_created":"2023-08-01T09:37:39Z","abstract":[{"text":"Confining molecules can fundamentally change their chemical and physical properties. Confinement effects are considered instrumental at various stages of the origins of life, and life continues to rely on layers of compartmentalization to maintain an out-of-equilibrium state and efficiently synthesize complex biomolecules under mild conditions. As interest in synthetic confined systems grows, we are realizing that the principles governing reactivity under confinement are the same in abiological systems as they are in nature. In this Review, we categorize the ways in which nanoconfinement effects impact chemical reactivity in synthetic systems. Under nanoconfinement, chemical properties can be modulated to increase reaction rates, enhance selectivity and stabilize reactive species. Confinement effects also lead to changes in physical properties. The fluorescence of light emitters, the colours of dyes and electronic communication between electroactive species can all be tuned under confinement. Within each of these categories, we elucidate design principles and strategies that are widely applicable across a range of confined systems, specifically highlighting examples of different nanocompartments that influence reactivity in similar ways.","lang":"eng"}],"type":"journal_article","citation":{"short":"A.B. Grommet, M. Feller, R. Klajn, Nature Nanotechnology 15 (2020) 256–271.","ista":"Grommet AB, Feller M, Klajn R. 2020. Chemical reactivity under nanoconfinement. Nature Nanotechnology. 15, 256–271.","ama":"Grommet AB, Feller M, Klajn R. Chemical reactivity under nanoconfinement. <i>Nature Nanotechnology</i>. 2020;15:256-271. doi:<a href=\"https://doi.org/10.1038/s41565-020-0652-2\">10.1038/s41565-020-0652-2</a>","chicago":"Grommet, Angela B., Moran Feller, and Rafal Klajn. “Chemical Reactivity under Nanoconfinement.” <i>Nature Nanotechnology</i>. Springer Nature, 2020. <a href=\"https://doi.org/10.1038/s41565-020-0652-2\">https://doi.org/10.1038/s41565-020-0652-2</a>.","apa":"Grommet, A. B., Feller, M., &#38; Klajn, R. (2020). Chemical reactivity under nanoconfinement. <i>Nature Nanotechnology</i>. Springer Nature. <a href=\"https://doi.org/10.1038/s41565-020-0652-2\">https://doi.org/10.1038/s41565-020-0652-2</a>","ieee":"A. B. Grommet, M. Feller, and R. Klajn, “Chemical reactivity under nanoconfinement,” <i>Nature Nanotechnology</i>, vol. 15. Springer Nature, pp. 256–271, 2020.","mla":"Grommet, Angela B., et al. “Chemical Reactivity under Nanoconfinement.” <i>Nature Nanotechnology</i>, vol. 15, Springer Nature, 2020, pp. 256–71, doi:<a href=\"https://doi.org/10.1038/s41565-020-0652-2\">10.1038/s41565-020-0652-2</a>."},"date_updated":"2024-10-14T12:13:35Z","article_processing_charge":"No"},{"language":[{"iso":"eng"}],"volume":53,"keyword":["Condensed Matter Physics","Atomic and Molecular Physics","and Optics"],"date_published":"2020-06-17T00:00:00Z","publication":"Journal of Physics B: Atomic, Molecular and Optical Physics","external_id":{"arxiv":["2001.09951"]},"day":"17","intvolume":"        53","article_number":"144003","article_processing_charge":"No","type":"journal_article","abstract":[{"text":"The interaction of strong near-infrared (NIR) laser pulses with wide-bandgap dielectrics produces high harmonics in the extreme ultraviolet (XUV) wavelength range. These observations have opened up the possibility of attosecond metrology in solids, which would benefit from a precise measurement of the emission times of individual harmonics with respect to the NIR laser field. Here we show that, when high-harmonics are detected from the input surface of a magnesium oxide crystal, a bichromatic probing of the XUV emission shows a clear synchronization largely consistent with a semiclassical model of electron–hole recollisions in bulk solids. On the other hand, the bichromatic spectrogram of harmonics originating from the exit surface of the 200 μm-thick crystal is strongly modified, indicating the influence of laser field distortions during propagation. Our tracking of sub-cycle electron and hole re-collisions at XUV energies is relevant to the development of solid-state sources of attosecond pulses.","lang":"eng"}],"date_created":"2023-08-09T13:09:51Z","date_updated":"2023-08-22T07:36:36Z","arxiv":1,"oa":1,"citation":{"short":"G. Vampa, J. Lu, Y.S. You, D.R. Baykusheva, M. Wu, H. Liu, K.J. Schafer, M.B. Gaarde, D.A. Reis, S. Ghimire, Journal of Physics B: Atomic, Molecular and Optical Physics 53 (2020).","ista":"Vampa G, Lu J, You YS, Baykusheva DR, Wu M, Liu H, Schafer KJ, Gaarde MB, Reis DA, Ghimire S. 2020. Attosecond synchronization of extreme ultraviolet high harmonics from crystals. Journal of Physics B: Atomic, Molecular and Optical Physics. 53(14), 144003.","ama":"Vampa G, Lu J, You YS, et al. Attosecond synchronization of extreme ultraviolet high harmonics from crystals. <i>Journal of Physics B: Atomic, Molecular and Optical Physics</i>. 2020;53(14). doi:<a href=\"https://doi.org/10.1088/1361-6455/ab8e56\">10.1088/1361-6455/ab8e56</a>","apa":"Vampa, G., Lu, J., You, Y. S., Baykusheva, D. R., Wu, M., Liu, H., … Ghimire, S. (2020). Attosecond synchronization of extreme ultraviolet high harmonics from crystals. <i>Journal of Physics B: Atomic, Molecular and Optical Physics</i>. IOP Publishing. <a href=\"https://doi.org/10.1088/1361-6455/ab8e56\">https://doi.org/10.1088/1361-6455/ab8e56</a>","chicago":"Vampa, Giulio, Jian Lu, Yong Sing You, Denitsa Rangelova Baykusheva, Mengxi Wu, Hanzhe Liu, Kenneth J Schafer, Mette B Gaarde, David A Reis, and Shambhu Ghimire. “Attosecond Synchronization of Extreme Ultraviolet High Harmonics from Crystals.” <i>Journal of Physics B: Atomic, Molecular and Optical Physics</i>. IOP Publishing, 2020. <a href=\"https://doi.org/10.1088/1361-6455/ab8e56\">https://doi.org/10.1088/1361-6455/ab8e56</a>.","mla":"Vampa, Giulio, et al. “Attosecond Synchronization of Extreme Ultraviolet High Harmonics from Crystals.” <i>Journal of Physics B: Atomic, Molecular and Optical Physics</i>, vol. 53, no. 14, 144003, IOP Publishing, 2020, doi:<a href=\"https://doi.org/10.1088/1361-6455/ab8e56\">10.1088/1361-6455/ab8e56</a>.","ieee":"G. Vampa <i>et al.</i>, “Attosecond synchronization of extreme ultraviolet high harmonics from crystals,” <i>Journal of Physics B: Atomic, Molecular and Optical Physics</i>, vol. 53, no. 14. IOP Publishing, 2020."},"oa_version":"Preprint","scopus_import":"1","publication_identifier":{"issn":["0953-4075"],"eissn":["1361-6455"]},"main_file_link":[{"url":"https://arxiv.org/abs/2001.09951","open_access":"1"}],"status":"public","month":"06","author":[{"last_name":"Vampa","full_name":"Vampa, Giulio","first_name":"Giulio"},{"last_name":"Lu","full_name":"Lu, Jian","first_name":"Jian"},{"last_name":"You","first_name":"Yong Sing","full_name":"You, Yong Sing"},{"last_name":"Baykusheva","first_name":"Denitsa Rangelova","id":"71b4d059-2a03-11ee-914d-dfa3beed6530","full_name":"Baykusheva, Denitsa Rangelova"},{"last_name":"Wu","first_name":"Mengxi","full_name":"Wu, Mengxi"},{"last_name":"Liu","full_name":"Liu, Hanzhe","first_name":"Hanzhe"},{"last_name":"Schafer","first_name":"Kenneth J","full_name":"Schafer, Kenneth J"},{"full_name":"Gaarde, Mette B","first_name":"Mette B","last_name":"Gaarde"},{"last_name":"Reis","first_name":"David A","full_name":"Reis, David A"},{"last_name":"Ghimire","first_name":"Shambhu","full_name":"Ghimire, Shambhu"}],"publication_status":"published","quality_controlled":"1","article_type":"original","issue":"14","_id":"13998","extern":"1","title":"Attosecond synchronization of extreme ultraviolet high harmonics from crystals","year":"2020","doi":"10.1088/1361-6455/ab8e56","publisher":"IOP Publishing","user_id":"2DF688A6-F248-11E8-B48F-1D18A9856A87"},{"keyword":["computational imaging","end-to-end photonic inverse design","inverse scattering","meta-optics","polarimetry"],"date_published":"2020-12-23T00:00:00Z","DOAJ_listed":"1","language":[{"iso":"eng"}],"volume":10,"ddc":["530"],"day":"23","intvolume":"        10","publication":"Nanophotonics","OA_type":"gold","external_id":{"arxiv":["2006.09145"]},"type":"journal_article","abstract":[{"lang":"eng","text":"By codesigning a metaoptical front end in conjunction with an image‐processing back end, we demonstrate noise sensitivity and compactness substantially superior to either an optics‐only or a computation‐only approach, illustrated by two examples: subwavelength imaging and reconstruction of the full polarization coherence matrices of multiple light sources. Our end‐to‐end inverse designs couple the solution of the full Maxwell equations—exploiting all aspects of wave physics arising in subwavelength scatterers—with inverse‐scattering algorithms in a single large‐scale optimization involving  degrees of freedom. The resulting structures scatter light in a way that is radically different from either a conventional lens or a random microstructure, and suppress the noise sensitivity of the inverse‐scattering computation by several orders of magnitude. Incorporating the full wave physics is especially crucial for detecting spectral and polarization information that is discarded by geometric optics and scalar diffraction theory."}],"date_created":"2026-03-30T12:22:48Z","date_updated":"2026-04-27T09:29:25Z","tmp":{"short":"CC BY (4.0)","name":"Creative Commons Attribution 4.0 International Public License (CC-BY 4.0)","image":"/images/cc_by.png","legal_code_url":"https://creativecommons.org/licenses/by/4.0/legalcode"},"citation":{"short":"Z. Lin, C. Roques-Carmes, R. Pestourie, M. Soljačić, A. Majumdar, S.G. Johnson, Nanophotonics 10 (2020) 1177–1187.","ista":"Lin Z, Roques-Carmes C, Pestourie R, Soljačić M, Majumdar A, Johnson SG. 2020. End‐to‐end nanophotonic inverse design for imaging and polarimetry. Nanophotonics. 10(3), 1177–1187.","ama":"Lin Z, Roques-Carmes C, Pestourie R, Soljačić M, Majumdar A, Johnson SG. End‐to‐end nanophotonic inverse design for imaging and polarimetry. <i>Nanophotonics</i>. 2020;10(3):1177-1187. doi:<a href=\"https://doi.org/10.1515/nanoph-2020-0579\">10.1515/nanoph-2020-0579</a>","ieee":"Z. Lin, C. Roques-Carmes, R. Pestourie, M. Soljačić, A. Majumdar, and S. G. Johnson, “End‐to‐end nanophotonic inverse design for imaging and polarimetry,” <i>Nanophotonics</i>, vol. 10, no. 3. Wiley, pp. 1177–1187, 2020.","mla":"Lin, Zin, et al. “End‐to‐end Nanophotonic Inverse Design for Imaging and Polarimetry.” <i>Nanophotonics</i>, vol. 10, no. 3, Wiley, 2020, pp. 1177–87, doi:<a href=\"https://doi.org/10.1515/nanoph-2020-0579\">10.1515/nanoph-2020-0579</a>.","apa":"Lin, Z., Roques-Carmes, C., Pestourie, R., Soljačić, M., Majumdar, A., &#38; Johnson, S. G. (2020). End‐to‐end nanophotonic inverse design for imaging and polarimetry. <i>Nanophotonics</i>. Wiley. <a href=\"https://doi.org/10.1515/nanoph-2020-0579\">https://doi.org/10.1515/nanoph-2020-0579</a>","chicago":"Lin, Zin, Charles Roques-Carmes, Raphaël Pestourie, Marin Soljačić, Arka Majumdar, and Steven G. Johnson. “End‐to‐end Nanophotonic Inverse Design for Imaging and Polarimetry.” <i>Nanophotonics</i>. Wiley, 2020. <a href=\"https://doi.org/10.1515/nanoph-2020-0579\">https://doi.org/10.1515/nanoph-2020-0579</a>."},"oa":1,"arxiv":1,"article_processing_charge":"No","scopus_import":"1","oa_version":"Published Version","publication_identifier":{"issn":["2192-8614"],"eissn":["2192-8614"]},"author":[{"last_name":"Lin","full_name":"Lin, Zin","first_name":"Zin"},{"last_name":"Roques-Carmes","first_name":"Charles","id":"e2e68fc9-6505-11ef-a541-eb4e72cc3e82","full_name":"Roques-Carmes, Charles"},{"last_name":"Pestourie","full_name":"Pestourie, Raphaël","first_name":"Raphaël"},{"first_name":"Marin","full_name":"Soljačić, Marin","last_name":"Soljačić"},{"last_name":"Majumdar","first_name":"Arka","full_name":"Majumdar, Arka"},{"last_name":"Johnson","full_name":"Johnson, Steven G.","first_name":"Steven G."}],"status":"public","main_file_link":[{"url":"https://doi.org/10.1515/nanoph-2020-0579","open_access":"1"}],"OA_place":"publisher","month":"12","issue":"3","article_type":"original","_id":"21642","publication_status":"published","quality_controlled":"1","year":"2020","title":"End‐to‐end nanophotonic inverse design for imaging and polarimetry","extern":"1","page":"1177-1187","user_id":"ba8df636-2132-11f1-aed0-ed93e2281fdd","doi":"10.1515/nanoph-2020-0579","publisher":"Wiley"},{"user_id":"2DF688A6-F248-11E8-B48F-1D18A9856A87","doi":"10.1002/cphc.201800935","publisher":"Wiley","year":"2019","title":"Microsecond protein dynamics from combined Bloch-McConnell and Near-Rotary-Resonance R1p relaxation-dispersion MAS NMR","extern":"1","page":"276-284","article_type":"original","issue":"2","_id":"8411","publication_status":"published","quality_controlled":"1","author":[{"full_name":"Marion, Dominique","first_name":"Dominique","last_name":"Marion"},{"last_name":"Gauto","full_name":"Gauto, Diego F.","first_name":"Diego F."},{"last_name":"Ayala","first_name":"Isabel","full_name":"Ayala, Isabel"},{"last_name":"Giandoreggio-Barranco","first_name":"Karine","full_name":"Giandoreggio-Barranco, Karine"},{"last_name":"Schanda","first_name":"Paul","id":"7B541462-FAF6-11E9-A490-E8DFE5697425","full_name":"Schanda, Paul","orcid":"0000-0002-9350-7606"}],"month":"01","status":"public","pmid":1,"oa_version":"Submitted Version","publication_identifier":{"issn":["1439-4235"]},"abstract":[{"text":"Studying protein dynamics on microsecond‐to‐millisecond (μs‐ms) time scales can provide important insight into protein function. In magic‐angle‐spinning (MAS) NMR, μs dynamics can be visualized by R1p rotating‐frame relaxation dispersion experiments in different regimes of radio‐frequency field strengths: at low RF field strength, isotropic‐chemical‐shift fluctuation leads to “Bloch‐McConnell‐type” relaxation dispersion, while when the RF field approaches rotary resonance conditions bond angle fluctuations manifest as increased R1p rate constants (“Near‐Rotary‐Resonance Relaxation Dispersion”, NERRD). Here we explore the joint analysis of both regimes to gain comprehensive insight into motion in terms of geometric amplitudes, chemical‐shift changes, populations and exchange kinetics. We use a numerical simulation procedure to illustrate these effects and the potential of extracting exchange parameters, and apply the methodology to the study of a previously described conformational exchange process in microcrystalline ubiquitin.","lang":"eng"}],"date_created":"2020-09-17T10:29:36Z","type":"journal_article","citation":{"apa":"Marion, D., Gauto, D. F., Ayala, I., Giandoreggio-Barranco, K., &#38; Schanda, P. (2019). Microsecond protein dynamics from combined Bloch-McConnell and Near-Rotary-Resonance R1p relaxation-dispersion MAS NMR. <i>ChemPhysChem</i>. Wiley. <a href=\"https://doi.org/10.1002/cphc.201800935\">https://doi.org/10.1002/cphc.201800935</a>","chicago":"Marion, Dominique, Diego F. Gauto, Isabel Ayala, Karine Giandoreggio-Barranco, and Paul Schanda. “Microsecond Protein Dynamics from Combined Bloch-McConnell and Near-Rotary-Resonance R1p Relaxation-Dispersion MAS NMR.” <i>ChemPhysChem</i>. Wiley, 2019. <a href=\"https://doi.org/10.1002/cphc.201800935\">https://doi.org/10.1002/cphc.201800935</a>.","ieee":"D. Marion, D. F. Gauto, I. Ayala, K. Giandoreggio-Barranco, and P. Schanda, “Microsecond protein dynamics from combined Bloch-McConnell and Near-Rotary-Resonance R1p relaxation-dispersion MAS NMR,” <i>ChemPhysChem</i>, vol. 20, no. 2. Wiley, pp. 276–284, 2019.","mla":"Marion, Dominique, et al. “Microsecond Protein Dynamics from Combined Bloch-McConnell and Near-Rotary-Resonance R1p Relaxation-Dispersion MAS NMR.” <i>ChemPhysChem</i>, vol. 20, no. 2, Wiley, 2019, pp. 276–84, doi:<a href=\"https://doi.org/10.1002/cphc.201800935\">10.1002/cphc.201800935</a>.","ista":"Marion D, Gauto DF, Ayala I, Giandoreggio-Barranco K, Schanda P. 2019. Microsecond protein dynamics from combined Bloch-McConnell and Near-Rotary-Resonance R1p relaxation-dispersion MAS NMR. ChemPhysChem. 20(2), 276–284.","short":"D. Marion, D.F. Gauto, I. Ayala, K. Giandoreggio-Barranco, P. Schanda, ChemPhysChem 20 (2019) 276–284.","ama":"Marion D, Gauto DF, Ayala I, Giandoreggio-Barranco K, Schanda P. Microsecond protein dynamics from combined Bloch-McConnell and Near-Rotary-Resonance R1p relaxation-dispersion MAS NMR. <i>ChemPhysChem</i>. 2019;20(2):276-284. doi:<a href=\"https://doi.org/10.1002/cphc.201800935\">10.1002/cphc.201800935</a>"},"date_updated":"2021-01-12T08:19:06Z","article_processing_charge":"No","intvolume":"        20","day":"21","publication":"ChemPhysChem","external_id":{"pmid":["30444575"]},"keyword":["Physical and Theoretical Chemistry","Atomic and Molecular Physics","and Optics"],"date_published":"2019-01-21T00:00:00Z","language":[{"iso":"eng"}],"volume":20},{"publication":"ChemPhysChem","external_id":{"pmid":["30276945"]},"intvolume":"        20","day":"21","volume":20,"language":[{"iso":"eng"}],"keyword":["Physical and Theoretical Chemistry","Atomic and Molecular Physics","and Optics"],"date_published":"2019-01-21T00:00:00Z","oa_version":"Submitted Version","publication_identifier":{"issn":["1439-4235"]},"pmid":1,"article_processing_charge":"No","date_created":"2020-09-17T10:29:43Z","abstract":[{"text":"Microsecond to millisecond timescale backbone dynamics of the amyloid core residues in Y145Stop human prion protein (PrP) fibrils were investigated by using 15N rotating frame (R1ρ) relaxation dispersion solid‐state nuclear magnetic resonance spectroscopy over a wide range of spin‐lock fields. Numerical simulations enabled the experimental relaxation dispersion profiles for most of the fibril core residues to be modelled by using a two‐state exchange process with a common exchange rate of 1000 s−1, corresponding to protein backbone motion on the timescale of 1 ms, and an excited‐state population of 2 %. We also found that the relaxation dispersion profiles for several amino acids positioned near the edges of the most structured regions of the amyloid core were better modelled by assuming somewhat higher excited‐state populations (∼5–15 %) and faster exchange rate constants, corresponding to protein backbone motions on the timescale of ∼100–300 μs. The slow backbone dynamics of the core residues were evaluated in the context of the structural model of human Y145Stop PrP amyloid.","lang":"eng"}],"type":"journal_article","citation":{"ista":"Shannon MD, Theint T, Mukhopadhyay D, Surewicz K, Surewicz WK, Marion D, Schanda P, Jaroniec CP. 2019. Conformational dynamics in the core of human Y145Stop prion protein amyloid probed by relaxation dispersion NMR. ChemPhysChem. 20(2), 311–317.","short":"M.D. Shannon, T. Theint, D. Mukhopadhyay, K. Surewicz, W.K. Surewicz, D. Marion, P. Schanda, C.P. Jaroniec, ChemPhysChem 20 (2019) 311–317.","ama":"Shannon MD, Theint T, Mukhopadhyay D, et al. Conformational dynamics in the core of human Y145Stop prion protein amyloid probed by relaxation dispersion NMR. <i>ChemPhysChem</i>. 2019;20(2):311-317. doi:<a href=\"https://doi.org/10.1002/cphc.201800779\">10.1002/cphc.201800779</a>","mla":"Shannon, Matthew D., et al. “Conformational Dynamics in the Core of Human Y145Stop Prion Protein Amyloid Probed by Relaxation Dispersion NMR.” <i>ChemPhysChem</i>, vol. 20, no. 2, Wiley, 2019, pp. 311–17, doi:<a href=\"https://doi.org/10.1002/cphc.201800779\">10.1002/cphc.201800779</a>.","ieee":"M. D. Shannon <i>et al.</i>, “Conformational dynamics in the core of human Y145Stop prion protein amyloid probed by relaxation dispersion NMR,” <i>ChemPhysChem</i>, vol. 20, no. 2. Wiley, pp. 311–317, 2019.","chicago":"Shannon, Matthew D., Theint Theint, Dwaipayan Mukhopadhyay, Krystyna Surewicz, Witold K. Surewicz, Dominique Marion, Paul Schanda, and Christopher P. Jaroniec. “Conformational Dynamics in the Core of Human Y145Stop Prion Protein Amyloid Probed by Relaxation Dispersion NMR.” <i>ChemPhysChem</i>. Wiley, 2019. <a href=\"https://doi.org/10.1002/cphc.201800779\">https://doi.org/10.1002/cphc.201800779</a>.","apa":"Shannon, M. D., Theint, T., Mukhopadhyay, D., Surewicz, K., Surewicz, W. K., Marion, D., … Jaroniec, C. P. (2019). Conformational dynamics in the core of human Y145Stop prion protein amyloid probed by relaxation dispersion NMR. <i>ChemPhysChem</i>. Wiley. <a href=\"https://doi.org/10.1002/cphc.201800779\">https://doi.org/10.1002/cphc.201800779</a>"},"date_updated":"2021-01-12T08:19:06Z","quality_controlled":"1","publication_status":"published","article_type":"original","issue":"2","_id":"8412","month":"01","status":"public","author":[{"last_name":"Shannon","first_name":"Matthew D.","full_name":"Shannon, Matthew D."},{"last_name":"Theint","full_name":"Theint, Theint","first_name":"Theint"},{"first_name":"Dwaipayan","full_name":"Mukhopadhyay, Dwaipayan","last_name":"Mukhopadhyay"},{"first_name":"Krystyna","full_name":"Surewicz, Krystyna","last_name":"Surewicz"},{"full_name":"Surewicz, Witold K.","first_name":"Witold K.","last_name":"Surewicz"},{"last_name":"Marion","full_name":"Marion, Dominique","first_name":"Dominique"},{"last_name":"Schanda","id":"7B541462-FAF6-11E9-A490-E8DFE5697425","full_name":"Schanda, Paul","first_name":"Paul","orcid":"0000-0002-9350-7606"},{"full_name":"Jaroniec, Christopher P.","first_name":"Christopher P.","last_name":"Jaroniec"}],"doi":"10.1002/cphc.201800779","publisher":"Wiley","user_id":"2DF688A6-F248-11E8-B48F-1D18A9856A87","extern":"1","page":"311-317","year":"2019","title":"Conformational dynamics in the core of human Y145Stop prion protein amyloid probed by relaxation dispersion NMR"},{"year":"2017","title":"Comment on ‘Time delays in molecular photoionization’","extern":"1","user_id":"2DF688A6-F248-11E8-B48F-1D18A9856A87","doi":"10.1088/1361-6455/aa62b5","publisher":"IOP Publishing","author":[{"last_name":"Baykusheva","first_name":"Denitsa Rangelova","full_name":"Baykusheva, Denitsa Rangelova","id":"71b4d059-2a03-11ee-914d-dfa3beed6530"},{"last_name":"Wörner","full_name":"Wörner, Hans Jakob","first_name":"Hans Jakob"}],"main_file_link":[{"open_access":"1","url":"https://arxiv.org/abs/1611.09352"}],"status":"public","month":"03","issue":"7","article_type":"letter_note","_id":"14007","publication_status":"published","quality_controlled":"1","type":"journal_article","date_created":"2023-08-10T06:36:29Z","abstract":[{"lang":"eng","text":"In a recent article by Hockett et al (2016 J. Phys. B: At. Mol. Opt. Phys. 49 095602), time delays arising in the context of molecular single-photon ionization are investigated from a theoretical point of view. We argue that one of the central equations given in this article is incorrect and present a reformulation that is consistent with the established treatment of angle-dependent scattering delays (Eisenbud 1948 PhD Thesis Princeton University; Wigner 1955 Phys. Rev. 98 145–7; Smith 1960 Phys. Rev. 118 349–6; Nussenzveig 1972 Phys. Rev. D 6 1534–42)."}],"date_updated":"2023-08-22T08:32:43Z","citation":{"apa":"Baykusheva, D. R., &#38; Wörner, H. J. (2017). Comment on ‘Time delays in molecular photoionization.’ <i>Journal of Physics B: Atomic, Molecular and Optical Physics</i>. IOP Publishing. <a href=\"https://doi.org/10.1088/1361-6455/aa62b5\">https://doi.org/10.1088/1361-6455/aa62b5</a>","chicago":"Baykusheva, Denitsa Rangelova, and Hans Jakob Wörner. “Comment on ‘Time Delays in Molecular Photoionization.’” <i>Journal of Physics B: Atomic, Molecular and Optical Physics</i>. IOP Publishing, 2017. <a href=\"https://doi.org/10.1088/1361-6455/aa62b5\">https://doi.org/10.1088/1361-6455/aa62b5</a>.","mla":"Baykusheva, Denitsa Rangelova, and Hans Jakob Wörner. “Comment on ‘Time Delays in Molecular Photoionization.’” <i>Journal of Physics B: Atomic, Molecular and Optical Physics</i>, vol. 50, no. 7, 078002, IOP Publishing, 2017, doi:<a href=\"https://doi.org/10.1088/1361-6455/aa62b5\">10.1088/1361-6455/aa62b5</a>.","ieee":"D. R. Baykusheva and H. J. Wörner, “Comment on ‘Time delays in molecular photoionization,’” <i>Journal of Physics B: Atomic, Molecular and Optical Physics</i>, vol. 50, no. 7. IOP Publishing, 2017.","ista":"Baykusheva DR, Wörner HJ. 2017. Comment on ‘Time delays in molecular photoionization’. Journal of Physics B: Atomic, Molecular and Optical Physics. 50(7), 078002.","short":"D.R. Baykusheva, H.J. Wörner, Journal of Physics B: Atomic, Molecular and Optical Physics 50 (2017).","ama":"Baykusheva DR, Wörner HJ. Comment on ‘Time delays in molecular photoionization.’ <i>Journal of Physics B: Atomic, Molecular and Optical Physics</i>. 2017;50(7). doi:<a href=\"https://doi.org/10.1088/1361-6455/aa62b5\">10.1088/1361-6455/aa62b5</a>"},"oa":1,"arxiv":1,"article_number":"078002","article_processing_charge":"No","scopus_import":"1","oa_version":"Preprint","publication_identifier":{"eissn":["1361-6455"],"issn":["0953-4075"]},"keyword":["Condensed Matter Physics","Atomic and Molecular Physics","and Optics"],"date_published":"2017-03-15T00:00:00Z","language":[{"iso":"eng"}],"volume":50,"day":"15","intvolume":"        50","publication":"Journal of Physics B: Atomic, Molecular and Optical Physics","external_id":{"arxiv":["1611.09352"]}}]