[{"citation":{"ama":"Salamin Y, Mills B, Yang G, et al. Three-dimensional optical crystals nanoprinted in a hydrogel. In: <i>Conference on Lasers and Electro-Optics</i>. Optica Publishing Group; 2022. doi:<a href=\"https://doi.org/10.1364/cleo_qels.2022.ff2d.1\">10.1364/cleo_qels.2022.ff2d.1</a>","short":"Y. Salamin, B. Mills, G. Yang, Q. Yang, C. Swain, D. Oran, J. Sloan, C. Roques-Carmes, J. Beroz, S.E. Kooi, E.S. Boyden, M. Soljačić, in:, Conference on Lasers and Electro-Optics, Optica Publishing Group, 2022.","chicago":"Salamin, Yannick, Brian Mills, Gaojie Yang, Quansan Yang, Corban Swain, Daniel Oran, Jamison Sloan, et al. “Three-Dimensional Optical Crystals Nanoprinted in a Hydrogel.” In <i>Conference on Lasers and Electro-Optics</i>. Optica Publishing Group, 2022. <a href=\"https://doi.org/10.1364/cleo_qels.2022.ff2d.1\">https://doi.org/10.1364/cleo_qels.2022.ff2d.1</a>.","ieee":"Y. Salamin <i>et al.</i>, “Three-dimensional optical crystals nanoprinted in a hydrogel,” in <i>Conference on Lasers and Electro-Optics</i>, San Jose, CA, United States, 2022.","ista":"Salamin Y, Mills B, Yang G, Yang Q, Swain C, Oran D, Sloan J, Roques-Carmes C, Beroz J, Kooi SE, Boyden ES, Soljačić M. 2022. Three-dimensional optical crystals nanoprinted in a hydrogel. Conference on Lasers and Electro-Optics. CLEO: Fundamental Science, FF2D.1.","mla":"Salamin, Yannick, et al. “Three-Dimensional Optical Crystals Nanoprinted in a Hydrogel.” <i>Conference on Lasers and Electro-Optics</i>, FF2D.1, Optica Publishing Group, 2022, doi:<a href=\"https://doi.org/10.1364/cleo_qels.2022.ff2d.1\">10.1364/cleo_qels.2022.ff2d.1</a>.","apa":"Salamin, Y., Mills, B., Yang, G., Yang, Q., Swain, C., Oran, D., … Soljačić, M. (2022). Three-dimensional optical crystals nanoprinted in a hydrogel. In <i>Conference on Lasers and Electro-Optics</i>. San Jose, CA, United States: Optica Publishing Group. <a href=\"https://doi.org/10.1364/cleo_qels.2022.ff2d.1\">https://doi.org/10.1364/cleo_qels.2022.ff2d.1</a>"},"abstract":[{"lang":"eng","text":"We demonstrate how Implosion Fabrication, a new three-dimensional nanofabrication technique, enables the realization of three-dimensional photonic devices at optical wavelengths. We realize two- and three-dimensional optical crystals of hydrogel-embedded silver meta-atoms."}],"date_published":"2022-06-01T00:00:00Z","publication_identifier":{"eisbn":["9781957171050"]},"OA_type":"closed access","doi":"10.1364/cleo_qels.2022.ff2d.1","publication":"Conference on Lasers and Electro-Optics","extern":"1","article_number":"FF2D.1","publication_status":"published","oa_version":"None","date_created":"2026-03-30T12:22:48Z","publisher":"Optica Publishing Group","_id":"21625","type":"conference","language":[{"iso":"eng"}],"status":"public","date_updated":"2026-05-04T13:10:36Z","user_id":"2DF688A6-F248-11E8-B48F-1D18A9856A87","quality_controlled":"1","year":"2022","conference":{"start_date":"2022-05-15","name":"CLEO: Fundamental Science","end_date":"2022-05-20","location":"San Jose, CA, United States"},"month":"06","day":"01","article_processing_charge":"No","author":[{"full_name":"Salamin, Yannick","first_name":"Yannick","last_name":"Salamin"},{"full_name":"Mills, Brian","first_name":"Brian","last_name":"Mills"},{"last_name":"Yang","first_name":"Gaojie","full_name":"Yang, Gaojie"},{"full_name":"Yang, Quansan","last_name":"Yang","first_name":"Quansan"},{"first_name":"Corban","last_name":"Swain","full_name":"Swain, Corban"},{"full_name":"Oran, Daniel","last_name":"Oran","first_name":"Daniel"},{"last_name":"Sloan","first_name":"Jamison","full_name":"Sloan, Jamison"},{"first_name":"Charles","last_name":"Roques-Carmes","full_name":"Roques-Carmes, Charles","id":"e2e68fc9-6505-11ef-a541-eb4e72cc3e82"},{"last_name":"Beroz","first_name":"Justin","full_name":"Beroz, Justin"},{"first_name":"Steven E.","last_name":"Kooi","full_name":"Kooi, Steven E."},{"first_name":"Edward S.","last_name":"Boyden","full_name":"Boyden, Edward S."},{"last_name":"Soljačić","first_name":"Marin","full_name":"Soljačić, Marin"}],"title":"Three-dimensional optical crystals nanoprinted in a hydrogel"},{"citation":{"apa":"Roques-Carmes, C., Rivera, N., Kooi, S. E., Yu, Y., Joannopoulos, J. D., Kaminer, I., &#38; Soljačić, M. (2022). X-ray imaging with nanophotonic scintillators. In <i>Conference on Lasers and Electro-Optics</i>. San Jose, CA, United States: Optica Publishing Group. <a href=\"https://doi.org/10.1364/cleo_si.2022.sm3k.1\">https://doi.org/10.1364/cleo_si.2022.sm3k.1</a>","mla":"Roques-Carmes, Charles, et al. “X-Ray Imaging with Nanophotonic Scintillators.” <i>Conference on Lasers and Electro-Optics</i>, SM3K.1, Optica Publishing Group, 2022, doi:<a href=\"https://doi.org/10.1364/cleo_si.2022.sm3k.1\">10.1364/cleo_si.2022.sm3k.1</a>.","short":"C. Roques-Carmes, N. Rivera, S.E. Kooi, Y. Yu, J.D. Joannopoulos, I. Kaminer, M. Soljačić, in:, Conference on Lasers and Electro-Optics, Optica Publishing Group, 2022.","ama":"Roques-Carmes C, Rivera N, Kooi SE, et al. X-ray imaging with nanophotonic scintillators. In: <i>Conference on Lasers and Electro-Optics</i>. Optica Publishing Group; 2022. doi:<a href=\"https://doi.org/10.1364/cleo_si.2022.sm3k.1\">10.1364/cleo_si.2022.sm3k.1</a>","ieee":"C. Roques-Carmes <i>et al.</i>, “X-ray imaging with nanophotonic scintillators,” in <i>Conference on Lasers and Electro-Optics</i>, San Jose, CA, United States, 2022.","ista":"Roques-Carmes C, Rivera N, Kooi SE, Yu Y, Joannopoulos JD, Kaminer I, Soljačić M. 2022. X-ray imaging with nanophotonic scintillators. Conference on Lasers and Electro-Optics. CLEO: Science and Innovations, SM3K.1.","chicago":"Roques-Carmes, Charles, Nicholas Rivera, Steven E. Kooi, Yang Yu, John D. Joannopoulos, Ido Kaminer, and Marin Soljačić. “X-Ray Imaging with Nanophotonic Scintillators.” In <i>Conference on Lasers and Electro-Optics</i>. Optica Publishing Group, 2022. <a href=\"https://doi.org/10.1364/cleo_si.2022.sm3k.1\">https://doi.org/10.1364/cleo_si.2022.sm3k.1</a>."},"abstract":[{"lang":"eng","text":"We develop a general framework to enhance and control X-ray scintillation by embedding nanophotonic structures into scintillators. We demonstrate 10-fold scintillation enhancement in a conventional scintillator, showing the potential of our technique for X-ray imaging."}],"date_published":"2022-06-01T00:00:00Z","doi":"10.1364/cleo_si.2022.sm3k.1","publication_identifier":{"eisbn":["9781957171050"]},"OA_type":"closed access","extern":"1","publication":"Conference on Lasers and Electro-Optics","date_created":"2026-03-30T12:22:48Z","article_number":"SM3K.1","oa_version":"None","publication_status":"published","_id":"21628","type":"conference","publisher":"Optica Publishing Group","language":[{"iso":"eng"}],"status":"public","date_updated":"2026-05-04T13:11:24Z","user_id":"2DF688A6-F248-11E8-B48F-1D18A9856A87","quality_controlled":"1","year":"2022","conference":{"location":"San Jose, CA, United States","end_date":"2022-05-20","name":"CLEO: Science and Innovations","start_date":"2022-05-15"},"month":"06","day":"01","article_processing_charge":"No","title":"X-ray imaging with nanophotonic scintillators","author":[{"last_name":"Roques-Carmes","first_name":"Charles","full_name":"Roques-Carmes, Charles","id":"e2e68fc9-6505-11ef-a541-eb4e72cc3e82"},{"last_name":"Rivera","first_name":"Nicholas","full_name":"Rivera, Nicholas"},{"last_name":"Kooi","first_name":"Steven E.","full_name":"Kooi, Steven E."},{"full_name":"Yu, Yang","last_name":"Yu","first_name":"Yang"},{"last_name":"Joannopoulos","first_name":"John D.","full_name":"Joannopoulos, John D."},{"last_name":"Kaminer","first_name":"Ido","full_name":"Kaminer, Ido"},{"full_name":"Soljačić, Marin","first_name":"Marin","last_name":"Soljačić"}]},{"title":"End-to-end metasurface inverse design for single-shot multi-channel imaging","main_file_link":[{"open_access":"1","url":"https://doi.org/10.1364/OE.449985"}],"author":[{"last_name":"Lin","first_name":"Zin","full_name":"Lin, Zin"},{"full_name":"Pestourie, Raphaël","first_name":"Raphaël","last_name":"Pestourie"},{"full_name":"Roques-Carmes, Charles","last_name":"Roques-Carmes","first_name":"Charles","id":"e2e68fc9-6505-11ef-a541-eb4e72cc3e82"},{"first_name":"Zhaoyi","last_name":"Li","full_name":"Li, Zhaoyi"},{"full_name":"Capasso, Federico","last_name":"Capasso","first_name":"Federico"},{"first_name":"Marin","last_name":"Soljačić","full_name":"Soljačić, Marin"},{"first_name":"Steven G.","last_name":"Johnson","full_name":"Johnson, Steven G."}],"article_type":"original","OA_place":"publisher","day":"19","user_id":"ba8df636-2132-11f1-aed0-ed93e2281fdd","status":"public","tmp":{"short":"CC BY (4.0)","legal_code_url":"https://creativecommons.org/licenses/by/4.0/legalcode","image":"/images/cc_by.png","name":"Creative Commons Attribution 4.0 International Public License (CC-BY 4.0)"},"date_updated":"2026-04-27T09:09:05Z","oa_version":"Published Version","date_created":"2026-03-30T12:22:48Z","pmid":1,"_id":"21638","extern":"1","publication":"Optics Express","date_published":"2022-07-19T00:00:00Z","DOAJ_listed":"1","publication_identifier":{"eissn":["1094-4087"]},"OA_type":"gold","arxiv":1,"external_id":{"arxiv":["2111.01071"],"pmid":[" 36299033"]},"oa":1,"article_processing_charge":"No","month":"07","issue":"16","page":"28358-28370","quality_controlled":"1","year":"2022","ddc":["530"],"language":[{"iso":"eng"}],"volume":30,"publication_status":"published","publisher":"Optica Publishing Group","type":"journal_article","intvolume":"        30","scopus_import":"1","doi":"10.1364/oe.449985","citation":{"ieee":"Z. Lin <i>et al.</i>, “End-to-end metasurface inverse design for single-shot multi-channel imaging,” <i>Optics Express</i>, vol. 30, no. 16. Optica Publishing Group, pp. 28358–28370, 2022.","ista":"Lin Z, Pestourie R, Roques-Carmes C, Li Z, Capasso F, Soljačić M, Johnson SG. 2022. End-to-end metasurface inverse design for single-shot multi-channel imaging. Optics Express. 30(16), 28358–28370.","chicago":"Lin, Zin, Raphaël Pestourie, Charles Roques-Carmes, Zhaoyi Li, Federico Capasso, Marin Soljačić, and Steven G. Johnson. “End-to-End Metasurface Inverse Design for Single-Shot Multi-Channel Imaging.” <i>Optics Express</i>. Optica Publishing Group, 2022. <a href=\"https://doi.org/10.1364/oe.449985\">https://doi.org/10.1364/oe.449985</a>.","short":"Z. Lin, R. Pestourie, C. Roques-Carmes, Z. Li, F. Capasso, M. Soljačić, S.G. Johnson, Optics Express 30 (2022) 28358–28370.","ama":"Lin Z, Pestourie R, Roques-Carmes C, et al. End-to-end metasurface inverse design for single-shot multi-channel imaging. <i>Optics Express</i>. 2022;30(16):28358-28370. doi:<a href=\"https://doi.org/10.1364/oe.449985\">10.1364/oe.449985</a>","apa":"Lin, Z., Pestourie, R., Roques-Carmes, C., Li, Z., Capasso, F., Soljačić, M., &#38; Johnson, S. G. (2022). End-to-end metasurface inverse design for single-shot multi-channel imaging. <i>Optics Express</i>. Optica Publishing Group. <a href=\"https://doi.org/10.1364/oe.449985\">https://doi.org/10.1364/oe.449985</a>","mla":"Lin, Zin, et al. “End-to-End Metasurface Inverse Design for Single-Shot Multi-Channel Imaging.” <i>Optics Express</i>, vol. 30, no. 16, Optica Publishing Group, 2022, pp. 28358–70, doi:<a href=\"https://doi.org/10.1364/oe.449985\">10.1364/oe.449985</a>."},"abstract":[{"lang":"eng","text":"We introduce end-to-end inverse design for multi-channel imaging, in which a nanophotonic frontend is optimized in conjunction with an image-processing backend to extract depth, spectral and polarization channels from a single monochrome image. Unlike diffractive optics, we show that subwavelength-scale “metasurface” designs can easily distinguish similar wavelength and polarization inputs. The proposed technique integrates a single-layer metasurface frontend with an efficient Tikhonov reconstruction backend, without any additional optics except a grayscale sensor. Our method yields multi-channel imaging by spontaneous demultiplexing: the metaoptics front-end separates different channels into distinct spatial domains whose locations on the sensor are optimally discovered by the inverse-design algorithm. We present large-area metasurface designs, compatible with standard lithography, for multi-spectral imaging, depth-spectral imaging, and “all-in-one” spectro-polarimetric-depth imaging with robust reconstruction performance (≲ 10% error with 1% detector noise). In contrast to neural networks, our framework is physically interpretable and does not require large training sets. It can be used to reconstruct arbitrary three-dimensional scenes with full multi-wavelength spectra and polarization textures."}]},{"date_updated":"2026-04-13T09:42:12Z","language":[{"iso":"eng"}],"status":"public","year":"2022","user_id":"2DF688A6-F248-11E8-B48F-1D18A9856A87","day":"03","OA_place":"repository","month":"08","author":[{"id":"e2e68fc9-6505-11ef-a541-eb4e72cc3e82","first_name":"Charles","last_name":"Roques-Carmes","full_name":"Roques-Carmes, Charles"},{"full_name":"Kooi, Steven E.","first_name":"Steven E.","last_name":"Kooi"},{"full_name":"Yang, Yi","last_name":"Yang","first_name":"Yi"},{"full_name":"Rivera, Nicholas","last_name":"Rivera","first_name":"Nicholas"},{"full_name":"Keathley, Phillip D.","first_name":"Phillip D.","last_name":"Keathley"},{"last_name":"Joannopoulos","first_name":"John D.","full_name":"Joannopoulos, John D."},{"full_name":"Johnson, Steven G.","last_name":"Johnson","first_name":"Steven G."},{"last_name":"Kaminer","first_name":"Ido","full_name":"Kaminer, Ido"},{"first_name":"Karl K.","last_name":"Berggren","full_name":"Berggren, Karl K."},{"first_name":"Marin","last_name":"Soljačić","full_name":"Soljačić, Marin"}],"title":"Free-electron-light interactions in nanophotonics","main_file_link":[{"url":"https://doi.org/10.48550/arXiv.2208.02368","open_access":"1"}],"article_processing_charge":"No","abstract":[{"lang":"eng","text":"When impinging on optical structures or passing in their vicinity, free electrons can spontaneously emit electromagnetic radiation, a phenomenon generally known as cathodoluminescence. Free-electron radiation comes in many guises: Cherenkov, transition, and Smith-Purcell radiation, but also electron scintillation, commonly referred to as incoherent cathodoluminescence. While those effects have been at the heart of many fundamental discoveries and technological developments in high-energy physics in the past century, their recent demonstration in photonic and nanophotonic systems has attracted a lot of attention. Those developments arose from predictions that exploit nanophotonics for novel radiation regimes, now becoming accessible thanks to advances in nanofabrication. In general, the proper design of nanophotonic structures can enable shaping, control, and enhancement of free-electron radiation, for any of the above-mentioned effects. Free-electron radiation in nanophotonics opens the way to promising applications, such as widely-tunable integrated light sources from x-ray to THz frequencies, miniaturized particle accelerators, and highly sensitive high-energy particle detectors. Here, we review the emerging field of free-electron radiation in nanophotonics. We first present a general, unified framework to describe free-electron light-matter interaction in arbitrary nanophotonic systems. We then show how this framework sheds light on the physical underpinnings of many methods in the field used to control and enhance free-electron radiation. Namely, the framework points to the central role played by the photonic eigenmodes in controlling the output properties of free-electron radiation (e.g., frequency, directionality, and polarization). [... see full abstract in paper]"}],"external_id":{"arxiv":["2208.02368"]},"citation":{"mla":"Roques-Carmes, Charles, et al. “Free-Electron-Light Interactions in Nanophotonics.” <i>ArXiv</i>, 2208.02368, doi:<a href=\"https://doi.org/10.48550/arXiv.2208.02368\">10.48550/arXiv.2208.02368</a>.","apa":"Roques-Carmes, C., Kooi, S. E., Yang, Y., Rivera, N., Keathley, P. D., Joannopoulos, J. D., … Soljačić, M. (n.d.). Free-electron-light interactions in nanophotonics. <i>arXiv</i>. <a href=\"https://doi.org/10.48550/arXiv.2208.02368\">https://doi.org/10.48550/arXiv.2208.02368</a>","ama":"Roques-Carmes C, Kooi SE, Yang Y, et al. Free-electron-light interactions in nanophotonics. <i>arXiv</i>. doi:<a href=\"https://doi.org/10.48550/arXiv.2208.02368\">10.48550/arXiv.2208.02368</a>","short":"C. Roques-Carmes, S.E. Kooi, Y. Yang, N. Rivera, P.D. Keathley, J.D. Joannopoulos, S.G. Johnson, I. Kaminer, K.K. Berggren, M. Soljačić, ArXiv (n.d.).","ieee":"C. Roques-Carmes <i>et al.</i>, “Free-electron-light interactions in nanophotonics,” <i>arXiv</i>. .","ista":"Roques-Carmes C, Kooi SE, Yang Y, Rivera N, Keathley PD, Joannopoulos JD, Johnson SG, Kaminer I, Berggren KK, Soljačić M. Free-electron-light interactions in nanophotonics. arXiv, 2208.02368.","chicago":"Roques-Carmes, Charles, Steven E. Kooi, Yi Yang, Nicholas Rivera, Phillip D. Keathley, John D. Joannopoulos, Steven G. Johnson, Ido Kaminer, Karl K. Berggren, and Marin Soljačić. “Free-Electron-Light Interactions in Nanophotonics.” <i>ArXiv</i>, n.d. <a href=\"https://doi.org/10.48550/arXiv.2208.02368\">https://doi.org/10.48550/arXiv.2208.02368</a>."},"oa":1,"OA_type":"green","doi":"10.48550/arXiv.2208.02368","arxiv":1,"date_published":"2022-08-03T00:00:00Z","scopus_import":"1","extern":"1","publication":"arXiv","type":"preprint","_id":"21673","oa_version":"Preprint","publication_status":"submitted","article_number":"2208.02368","date_created":"2026-04-09T09:10:41Z"},{"year":"2022","ddc":["540"],"quality_controlled":"1","volume":126,"language":[{"iso":"eng"}],"article_processing_charge":"No","page":"3347-3354","issue":"17","month":"04","doi":"10.1021/acs.jpcb.2c02005","scopus_import":"1","abstract":[{"lang":"eng","text":"Controlling the multistage photoresponsivity remains a challenge, in part, due to the spontaneous tautomerization between isomers. Herein, we present a strategy to access three independent states (linear, cyclic keto, and cyclic enolate) of crown ether (CE)-substituted donor–acceptor Stenhouse adducts (DASAs) by limiting the tautomerization of the closed isomers. The linear–cyclic keto isomerization is reversibly triggered by treatment with metal ions (Na+ or K+) and CE, while the linear–cyclic enolate isomerization is induced by green light and heat. Density functional theory and molecular dynamics calculation results suggest that the steric effect and supramolecular interaction between the electron-donating and electron-withdrawing moieties play an important role in hindering the tautomerization between cyclic keto and cyclic enolate DASA-CE. The strategy to influence key steps in the photoswitching process inspires well-controlled multistage isomerization of photoresponsive molecules."}],"citation":{"ista":"Duan Y, Zhao H, Xue G, Sun F, Stricker FJ, Wang Z, Mao L, He C, de Alaniz JR, Zheng Y, Wang D. 2022. Controlling the isomerization of photoresponsive molecules through a limiting tautomerization strategy. The Journal of Physical Chemistry B. 126(17), 3347–3354.","ieee":"Y. Duan <i>et al.</i>, “Controlling the isomerization of photoresponsive molecules through a limiting tautomerization strategy,” <i>The Journal of Physical Chemistry B</i>, vol. 126, no. 17. American Chemical Society, pp. 3347–3354, 2022.","chicago":"Duan, Yongli, Haiquan Zhao, Guodong Xue, Fanxi Sun, Friedrich J Stricker, Zhen Wang, Lijun Mao, et al. “Controlling the Isomerization of Photoresponsive Molecules through a Limiting Tautomerization Strategy.” <i>The Journal of Physical Chemistry B</i>. American Chemical Society, 2022. <a href=\"https://doi.org/10.1021/acs.jpcb.2c02005\">https://doi.org/10.1021/acs.jpcb.2c02005</a>.","ama":"Duan Y, Zhao H, Xue G, et al. Controlling the isomerization of photoresponsive molecules through a limiting tautomerization strategy. <i>The Journal of Physical Chemistry B</i>. 2022;126(17):3347-3354. doi:<a href=\"https://doi.org/10.1021/acs.jpcb.2c02005\">10.1021/acs.jpcb.2c02005</a>","short":"Y. Duan, H. Zhao, G. Xue, F. Sun, F.J. Stricker, Z. Wang, L. Mao, C. He, J.R. de Alaniz, Y. Zheng, D. Wang, The Journal of Physical Chemistry B 126 (2022) 3347–3354.","apa":"Duan, Y., Zhao, H., Xue, G., Sun, F., Stricker, F. J., Wang, Z., … Wang, D. (2022). Controlling the isomerization of photoresponsive molecules through a limiting tautomerization strategy. <i>The Journal of Physical Chemistry B</i>. American Chemical Society. <a href=\"https://doi.org/10.1021/acs.jpcb.2c02005\">https://doi.org/10.1021/acs.jpcb.2c02005</a>","mla":"Duan, Yongli, et al. “Controlling the Isomerization of Photoresponsive Molecules through a Limiting Tautomerization Strategy.” <i>The Journal of Physical Chemistry B</i>, vol. 126, no. 17, American Chemical Society, 2022, pp. 3347–54, doi:<a href=\"https://doi.org/10.1021/acs.jpcb.2c02005\">10.1021/acs.jpcb.2c02005</a>."},"type":"journal_article","publisher":"American Chemical Society","publication_status":"published","intvolume":"       126","user_id":"2DF688A6-F248-11E8-B48F-1D18A9856A87","date_updated":"2026-05-11T07:28:38Z","status":"public","title":"Controlling the isomerization of photoresponsive molecules through a limiting tautomerization strategy","author":[{"full_name":"Duan, Yongli","last_name":"Duan","first_name":"Yongli"},{"full_name":"Zhao, Haiquan","last_name":"Zhao","first_name":"Haiquan"},{"full_name":"Xue, Guodong","last_name":"Xue","first_name":"Guodong"},{"last_name":"Sun","first_name":"Fanxi","full_name":"Sun, Fanxi"},{"last_name":"Stricker","first_name":"Friedrich J","full_name":"Stricker, Friedrich J","id":"7aca2cfc-46cf-11f0-abd3-8c96b5186745"},{"last_name":"Wang","first_name":"Zhen","full_name":"Wang, Zhen"},{"full_name":"Mao, Lijun","last_name":"Mao","first_name":"Lijun"},{"first_name":"Chao","last_name":"He","full_name":"He, Chao"},{"last_name":"de Alaniz","first_name":"Javier Read","full_name":"de Alaniz, Javier Read"},{"first_name":"Yonghao","last_name":"Zheng","full_name":"Zheng, Yonghao"},{"last_name":"Wang","first_name":"Dongsheng","full_name":"Wang, Dongsheng"}],"day":"26","article_type":"original","OA_type":"closed access","publication_identifier":{"issn":["1520-6106"],"eissn":["1520-5207"]},"date_published":"2022-04-26T00:00:00Z","external_id":{"pmid":["35471969"]},"_id":"21809","pmid":1,"date_created":"2026-05-06T10:45:18Z","oa_version":"None","publication":"The Journal of Physical Chemistry B","extern":"1"},{"publication":"Nature Chemistry","extern":"1","date_created":"2026-05-06T10:56:14Z","oa_version":"None","_id":"21819","pmid":1,"external_id":{"pmid":["35681046"]},"date_published":"2022-06-09T00:00:00Z","publication_identifier":{"eissn":["1755-4349"],"issn":["1755-4330"]},"OA_type":"closed access","article_type":"original","day":"09","title":"A multi-stage single photochrome system for controlled photoswitching responses","author":[{"id":"7aca2cfc-46cf-11f0-abd3-8c96b5186745","full_name":"Stricker, Friedrich J","first_name":"Friedrich J","last_name":"Stricker"},{"full_name":"Sanchez, David M.","last_name":"Sanchez","first_name":"David M."},{"full_name":"Raucci, Umberto","first_name":"Umberto","last_name":"Raucci"},{"first_name":"Neil D.","last_name":"Dolinski","full_name":"Dolinski, Neil D."},{"last_name":"Zayas","first_name":"Manuel S.","full_name":"Zayas, Manuel S."},{"last_name":"Meisner","first_name":"Jan","full_name":"Meisner, Jan"},{"last_name":"Hawker","first_name":"Craig. J.","full_name":"Hawker, Craig. J."},{"first_name":"Todd. J.","last_name":"Martínez","full_name":"Martínez, Todd. J."},{"full_name":"Read de Alaniz, Javier","last_name":"Read de Alaniz","first_name":"Javier"}],"status":"public","date_updated":"2026-05-18T09:13:44Z","user_id":"2DF688A6-F248-11E8-B48F-1D18A9856A87","intvolume":"        14","publication_status":"published","publisher":"Springer Nature","type":"journal_article","citation":{"mla":"Stricker, Friedrich J., et al. “A Multi-Stage Single Photochrome System for Controlled Photoswitching Responses.” <i>Nature Chemistry</i>, vol. 14, Springer Nature, 2022, pp. 942–48, doi:<a href=\"https://doi.org/10.1038/s41557-022-00947-8\">10.1038/s41557-022-00947-8</a>.","apa":"Stricker, F. J., Sanchez, D. M., Raucci, U., Dolinski, N. D., Zayas, M. S., Meisner, J., … Read de Alaniz, J. (2022). A multi-stage single photochrome system for controlled photoswitching responses. <i>Nature Chemistry</i>. Springer Nature. <a href=\"https://doi.org/10.1038/s41557-022-00947-8\">https://doi.org/10.1038/s41557-022-00947-8</a>","ama":"Stricker FJ, Sanchez DM, Raucci U, et al. A multi-stage single photochrome system for controlled photoswitching responses. <i>Nature Chemistry</i>. 2022;14:942-948. doi:<a href=\"https://doi.org/10.1038/s41557-022-00947-8\">10.1038/s41557-022-00947-8</a>","short":"F.J. Stricker, D.M. Sanchez, U. Raucci, N.D. Dolinski, M.S. Zayas, J. Meisner, C.J. Hawker, T.J. Martínez, J. Read de Alaniz, Nature Chemistry 14 (2022) 942–948.","ieee":"F. J. Stricker <i>et al.</i>, “A multi-stage single photochrome system for controlled photoswitching responses,” <i>Nature Chemistry</i>, vol. 14. Springer Nature, pp. 942–948, 2022.","chicago":"Stricker, Friedrich J, David M. Sanchez, Umberto Raucci, Neil D. Dolinski, Manuel S. Zayas, Jan Meisner, Craig. J. Hawker, Todd. J. Martínez, and Javier Read de Alaniz. “A Multi-Stage Single Photochrome System for Controlled Photoswitching Responses.” <i>Nature Chemistry</i>. Springer Nature, 2022. <a href=\"https://doi.org/10.1038/s41557-022-00947-8\">https://doi.org/10.1038/s41557-022-00947-8</a>.","ista":"Stricker FJ, Sanchez DM, Raucci U, Dolinski ND, Zayas MS, Meisner J, Hawker CJ, Martínez TJ, Read de Alaniz J. 2022. A multi-stage single photochrome system for controlled photoswitching responses. Nature Chemistry. 14, 942–948."},"abstract":[{"lang":"eng","text":"The ability of molecular photoswitches to convert on/off responses into large macroscale property change is fundamental to light-responsive materials. However, moving beyond simple binary responses necessitates the introduction of new elements that control the chemistry of the photoswitching process at the molecular scale. To achieve this goal, we designed, synthesized and developed a single photochrome, based on a modified donor–acceptor Stenhouse adduct (DASA), capable of independently addressing multiple molecular states. The multi-stage photoswitch enables complex switching phenomena. To demonstrate this, we show spatial control of the transformation of a three-stage photoswitch by tuning the population of intermediates along the multi-step reaction pathway of the DASAs without interfering with either the first or final stage. This allows for a photonic three-stage logic gate where the secondary wavelength solely negates the input of the primary wavelength. These results provide a new strategy to move beyond traditional on/off binary photochromic systems and enable the design of future molecular logic systems."}],"scopus_import":"1","doi":"10.1038/s41557-022-00947-8","month":"06","page":"942-948","article_processing_charge":"No","language":[{"iso":"eng"}],"volume":14,"quality_controlled":"1","ddc":["540"],"year":"2022"},{"intvolume":"        58","publication_status":"published","type":"journal_article","publisher":"Royal Society of Chemistry","citation":{"ieee":"J. A. Peterson, F. J. Stricker, and J. Read de Alaniz, “Improving the kinetics and dark equilibrium of donor-acceptor Stenhouse adduct by triene backbone design,” <i>Chemical Communications</i>, vol. 58, no. 14. Royal Society of Chemistry, pp. 2303–2306, 2022.","chicago":"Peterson, Julie A., Friedrich J Stricker, and Javier Read de Alaniz. “Improving the Kinetics and Dark Equilibrium of Donor-Acceptor Stenhouse Adduct by Triene Backbone Design.” <i>Chemical Communications</i>. Royal Society of Chemistry, 2022. <a href=\"https://doi.org/10.1039/d1cc06235b\">https://doi.org/10.1039/d1cc06235b</a>.","ista":"Peterson JA, Stricker FJ, Read de Alaniz J. 2022. Improving the kinetics and dark equilibrium of donor-acceptor Stenhouse adduct by triene backbone design. Chemical Communications. 58(14), 2303–2306.","ama":"Peterson JA, Stricker FJ, Read de Alaniz J. Improving the kinetics and dark equilibrium of donor-acceptor Stenhouse adduct by triene backbone design. <i>Chemical Communications</i>. 2022;58(14):2303-2306. doi:<a href=\"https://doi.org/10.1039/d1cc06235b\">10.1039/d1cc06235b</a>","short":"J.A. Peterson, F.J. Stricker, J. Read de Alaniz, Chemical Communications 58 (2022) 2303–2306.","apa":"Peterson, J. A., Stricker, F. J., &#38; Read de Alaniz, J. (2022). Improving the kinetics and dark equilibrium of donor-acceptor Stenhouse adduct by triene backbone design. <i>Chemical Communications</i>. Royal Society of Chemistry. <a href=\"https://doi.org/10.1039/d1cc06235b\">https://doi.org/10.1039/d1cc06235b</a>","mla":"Peterson, Julie A., et al. “Improving the Kinetics and Dark Equilibrium of Donor-Acceptor Stenhouse Adduct by Triene Backbone Design.” <i>Chemical Communications</i>, vol. 58, no. 14, Royal Society of Chemistry, 2022, pp. 2303–06, doi:<a href=\"https://doi.org/10.1039/d1cc06235b\">10.1039/d1cc06235b</a>."},"abstract":[{"text":"DFT calculations were used to find an optimal substitution site on the triene backbone of a donor–acceptor Stenhouse adduct photoswitch to tune the equillibrium and switching kinetics of DASA without modifying the donor and acceptor groups. Using this approach we demonstrate a new means to tuning DASA based photoswitches by increasing the energy of the closed form relative to the open form. To highlight the potential of this approach a new DASA derivative bearing a methyl substituent on the 5-position of the triene was synthesized and the effect of this substitution was studied using 1H NMR spectroscopy, time-dependent UV-Vis and solvatochromic analysis. The new DASA derivative shows a higher dark equillibrium, favoring the open form, and drastically faster thermal recovery than the unsubstituted derivative with the same donor and acceptor.","lang":"eng"}],"scopus_import":"1","doi":"10.1039/d1cc06235b","month":"01","issue":"14","page":"2303-2306","article_processing_charge":"No","language":[{"iso":"eng"}],"volume":58,"quality_controlled":"1","year":"2022","ddc":["540"],"publication":"Chemical Communications","extern":"1","oa_version":"Accepted Version","date_created":"2026-05-06T10:59:03Z","pmid":1,"_id":"21823","external_id":{"pmid":["35075464"]},"oa":1,"date_published":"2022-01-17T00:00:00Z","publication_identifier":{"issn":["1359-7345"],"eissn":["1364-548X"]},"OA_type":"green","article_type":"original","day":"17","main_file_link":[{"open_access":"1","url":"https://doi.org/10.1039/D1CC06235B"}],"title":"Improving the kinetics and dark equilibrium of donor-acceptor Stenhouse adduct by triene backbone design","author":[{"full_name":"Peterson, Julie A.","last_name":"Peterson","first_name":"Julie A."},{"id":"7aca2cfc-46cf-11f0-abd3-8c96b5186745","full_name":"Stricker, Friedrich J","first_name":"Friedrich J","last_name":"Stricker"},{"last_name":"Read de Alaniz","first_name":"Javier","full_name":"Read de Alaniz, Javier"}],"status":"public","date_updated":"2026-05-18T09:46:30Z","user_id":"ba8df636-2132-11f1-aed0-ed93e2281fdd"},{"oa_version":"None","date_created":"2026-05-06T10:59:35Z","_id":"21824","publication":"ACS Applied Polymer Materials","extern":"1","date_published":"2022-01-05T00:00:00Z","publication_identifier":{"eissn":["2637-6105"]},"OA_type":"closed access","author":[{"first_name":"Miranda M.","last_name":"Sroda","full_name":"Sroda, Miranda M."},{"last_name":"Lee","first_name":"Jaejun","full_name":"Lee, Jaejun"},{"full_name":"Kwon, Younghoon","last_name":"Kwon","first_name":"Younghoon"},{"id":"7aca2cfc-46cf-11f0-abd3-8c96b5186745","full_name":"Stricker, Friedrich J","first_name":"Friedrich J","last_name":"Stricker"},{"last_name":"Park","first_name":"Minwook","full_name":"Park, Minwook"},{"first_name":"Megan T.","last_name":"Valentine","full_name":"Valentine, Megan T."},{"full_name":"Read de Alaniz, Javier","first_name":"Javier","last_name":"Read de Alaniz"}],"title":"Role of material composition in photothermal actuation of DASA-based polymers","article_type":"original","day":"05","user_id":"2DF688A6-F248-11E8-B48F-1D18A9856A87","status":"public","keyword":["donor−acceptor Stenhouse adducts","photothermal actuation","photo-induced property changes","negative photochromism","glass transition temperature"],"date_updated":"2026-05-11T07:46:45Z","publication_status":"published","type":"journal_article","publisher":"American Chemical Society","intvolume":"         4","scopus_import":"1","doi":"10.1021/acsapm.1c01108","citation":{"ama":"Sroda MM, Lee J, Kwon Y, et al. Role of material composition in photothermal actuation of DASA-based polymers. <i>ACS Applied Polymer Materials</i>. 2022;4(1):141-149. doi:<a href=\"https://doi.org/10.1021/acsapm.1c01108\">10.1021/acsapm.1c01108</a>","short":"M.M. Sroda, J. Lee, Y. Kwon, F.J. Stricker, M. Park, M.T. Valentine, J. Read de Alaniz, ACS Applied Polymer Materials 4 (2022) 141–149.","ista":"Sroda MM, Lee J, Kwon Y, Stricker FJ, Park M, Valentine MT, Read de Alaniz J. 2022. Role of material composition in photothermal actuation of DASA-based polymers. ACS Applied Polymer Materials. 4(1), 141–149.","chicago":"Sroda, Miranda M., Jaejun Lee, Younghoon Kwon, Friedrich J Stricker, Minwook Park, Megan T. Valentine, and Javier Read de Alaniz. “Role of Material Composition in Photothermal Actuation of DASA-Based Polymers.” <i>ACS Applied Polymer Materials</i>. American Chemical Society, 2022. <a href=\"https://doi.org/10.1021/acsapm.1c01108\">https://doi.org/10.1021/acsapm.1c01108</a>.","ieee":"M. M. Sroda <i>et al.</i>, “Role of material composition in photothermal actuation of DASA-based polymers,” <i>ACS Applied Polymer Materials</i>, vol. 4, no. 1. American Chemical Society, pp. 141–149, 2022.","mla":"Sroda, Miranda M., et al. “Role of Material Composition in Photothermal Actuation of DASA-Based Polymers.” <i>ACS Applied Polymer Materials</i>, vol. 4, no. 1, American Chemical Society, 2022, pp. 141–49, doi:<a href=\"https://doi.org/10.1021/acsapm.1c01108\">10.1021/acsapm.1c01108</a>.","apa":"Sroda, M. M., Lee, J., Kwon, Y., Stricker, F. J., Park, M., Valentine, M. T., &#38; Read de Alaniz, J. (2022). Role of material composition in photothermal actuation of DASA-based polymers. <i>ACS Applied Polymer Materials</i>. American Chemical Society. <a href=\"https://doi.org/10.1021/acsapm.1c01108\">https://doi.org/10.1021/acsapm.1c01108</a>"},"abstract":[{"text":"We investigate the influence of the host matrix on the photothermally driven actuation performance of negatively photochromic, donor−acceptor Stenhouse adduct (DASA)-based polymers. Using a modular Diels−Alder “click” platform, we designed polymeric materials with varying DASA incorporation and investigated the relationships between the material composition and the resulting physical, mechanical, and photoswitching properties. We demonstrate that increasing the DASA concentration in polymer conjugates has a dramatic effect on the material’s physical and mechanical properties, such as the glass transition temperature (Tg) and elastic modulus, as well as the photoswitching properties, which are found to be highly dependent on Tg. We establish using a simple photoresponsive bilayer that actuation performance is controlled by the bilayer stiffness rather than the photochrome incorporation of DASA. Finally, we report and compare the light-induced property changes in Tg and the elastic modulus between the materials comprising the open or closed forms of DASAs. Our results demonstrate the importance of designing a material that is stiff enough to provide the mechanical strength required for actuation under load, but soft enough to reversibly switch at the operational temperature and provide key considerations for the development of application-geared photoswitchable materials.","lang":"eng"}],"article_processing_charge":"No","month":"01","page":"141-149","issue":"1","quality_controlled":"1","ddc":["540"],"year":"2022","language":[{"iso":"eng"}],"volume":4},{"doi":"10.15227/orgsyn.099.0079","publication_identifier":{"eissn":["2333-3553"],"issnl":["0078-6209"]},"OA_type":"closed access","date_published":"2022-05-23T00:00:00Z","citation":{"ama":"Stricker FJ, Julie P, Javier R de A. Preparation of a donor-acceptor Stenhouse Adduct (DASA): 5-((2Z,4E)-5-(diethylamino)-2-hydroxypenta-2,4-dien-1-ylidene)-2,2-dimethyl-1,3-dioxane-4,6-dione. <i>Organic Syntheses</i>. 2022;99:79-91. doi:<a href=\"https://doi.org/10.15227/orgsyn.099.0079\">10.15227/orgsyn.099.0079</a>","short":"F.J. Stricker, P. Julie, R. de A. Javier, Organic Syntheses 99 (2022) 79–91.","ieee":"F. J. Stricker, P. Julie, and R. de A. Javier, “Preparation of a donor-acceptor Stenhouse Adduct (DASA): 5-((2Z,4E)-5-(diethylamino)-2-hydroxypenta-2,4-dien-1-ylidene)-2,2-dimethyl-1,3-dioxane-4,6-dione,” <i>Organic Syntheses</i>, vol. 99. Organic Syntheses, pp. 79–91, 2022.","ista":"Stricker FJ, Julie P, Javier R de A. 2022. Preparation of a donor-acceptor Stenhouse Adduct (DASA): 5-((2Z,4E)-5-(diethylamino)-2-hydroxypenta-2,4-dien-1-ylidene)-2,2-dimethyl-1,3-dioxane-4,6-dione. Organic Syntheses. 99, 79–91.","chicago":"Stricker, Friedrich J, Peterson Julie, and Read de Alaniz Javier. “Preparation of a Donor-Acceptor Stenhouse Adduct (DASA): 5-((2Z,4E)-5-(Diethylamino)-2-Hydroxypenta-2,4-Dien-1-Ylidene)-2,2-Dimethyl-1,3-Dioxane-4,6-Dione.” <i>Organic Syntheses</i>. Organic Syntheses, 2022. <a href=\"https://doi.org/10.15227/orgsyn.099.0079\">https://doi.org/10.15227/orgsyn.099.0079</a>.","mla":"Stricker, Friedrich J., et al. “Preparation of a Donor-Acceptor Stenhouse Adduct (DASA): 5-((2Z,4E)-5-(Diethylamino)-2-Hydroxypenta-2,4-Dien-1-Ylidene)-2,2-Dimethyl-1,3-Dioxane-4,6-Dione.” <i>Organic Syntheses</i>, vol. 99, Organic Syntheses, 2022, pp. 79–91, doi:<a href=\"https://doi.org/10.15227/orgsyn.099.0079\">10.15227/orgsyn.099.0079</a>.","apa":"Stricker, F. J., Julie, P., &#38; Javier, R. de A. (2022). Preparation of a donor-acceptor Stenhouse Adduct (DASA): 5-((2Z,4E)-5-(diethylamino)-2-hydroxypenta-2,4-dien-1-ylidene)-2,2-dimethyl-1,3-dioxane-4,6-dione. <i>Organic Syntheses</i>. Organic Syntheses. <a href=\"https://doi.org/10.15227/orgsyn.099.0079\">https://doi.org/10.15227/orgsyn.099.0079</a>"},"_id":"21827","publisher":"Organic Syntheses","type":"journal_article","date_created":"2026-05-06T11:10:35Z","publication_status":"published","oa_version":"None","intvolume":"        99","publication":"Organic Syntheses","extern":"1","year":"2022","ddc":["540"],"user_id":"ba8df636-2132-11f1-aed0-ed93e2281fdd","quality_controlled":"1","date_updated":"2026-05-12T06:52:08Z","volume":99,"language":[{"iso":"eng"}],"status":"public","title":"Preparation of a donor-acceptor Stenhouse Adduct (DASA): 5-((2Z,4E)-5-(diethylamino)-2-hydroxypenta-2,4-dien-1-ylidene)-2,2-dimethyl-1,3-dioxane-4,6-dione","author":[{"full_name":"Stricker, Friedrich J","first_name":"Friedrich J","last_name":"Stricker","id":"7aca2cfc-46cf-11f0-abd3-8c96b5186745"},{"last_name":"Julie","first_name":"Peterson","full_name":"Julie, Peterson"},{"full_name":"Javier, Read de Alaniz","first_name":"Read de Alaniz","last_name":"Javier"}],"article_processing_charge":"No","page":"79-91","day":"23","month":"05","article_type":"original"},{"extern":"1","publication":"Molecular Photoswitches: Chemistry, Properties, and Applications","place":"Weinheim","_id":"21828","publisher":"Wiley","type":"book_chapter","publication_status":"published","oa_version":"None","date_created":"2026-05-06T11:15:39Z","abstract":[{"lang":"eng","text":"Donor–acceptor Stenhouse adducts (DASA) are a reported class of visible-light-activated photoswitches. DASA synthesis involves two steps using furfural as starting material, while their complex photoswitching mechanism consists both of actinic and thermal steps. As a result of their visible-light activation, negative photochromism, large volume and polarity change, and wavelength tunability, DASAs present significant promise toward light-activated materials. In the years since their first report in 2014, a number of applications have utilized DASA ranging from selective cargo release over controlled phase transfer to directed flow in solution."}],"citation":{"short":"F.J. Stricker, S. Seshadri, J.R. de Alaniz, in:, Z. Pianowski (Ed.), Molecular Photoswitches: Chemistry, Properties, and Applications, Wiley, Weinheim, 2022, pp. 303–324.","ama":"Stricker FJ, Seshadri S, de Alaniz JR. Donor-Acceptor Stenhouse Adducts. In: Pianowski Z, ed. <i>Molecular Photoswitches: Chemistry, Properties, and Applications</i>. Weinheim: Wiley; 2022:303-324. doi:<a href=\"https://doi.org/10.1002/9783527827626.ch14\">10.1002/9783527827626.ch14</a>","chicago":"Stricker, Friedrich J, Serena Seshadri, and Javier Read de Alaniz. “Donor-Acceptor Stenhouse Adducts.” In <i>Molecular Photoswitches: Chemistry, Properties, and Applications</i>, edited by Zbigniew Pianowski, 303–24. Weinheim: Wiley, 2022. <a href=\"https://doi.org/10.1002/9783527827626.ch14\">https://doi.org/10.1002/9783527827626.ch14</a>.","ista":"Stricker FJ, Seshadri S, de Alaniz JR. 2022.Donor-Acceptor Stenhouse Adducts. In: Molecular Photoswitches: Chemistry, Properties, and Applications. , 303–324.","ieee":"F. J. Stricker, S. Seshadri, and J. R. de Alaniz, “Donor-Acceptor Stenhouse Adducts,” in <i>Molecular Photoswitches: Chemistry, Properties, and Applications</i>, Z. Pianowski, Ed. Weinheim: Wiley, 2022, pp. 303–324.","mla":"Stricker, Friedrich J., et al. “Donor-Acceptor Stenhouse Adducts.” <i>Molecular Photoswitches: Chemistry, Properties, and Applications</i>, edited by Zbigniew Pianowski, Wiley, 2022, pp. 303–24, doi:<a href=\"https://doi.org/10.1002/9783527827626.ch14\">10.1002/9783527827626.ch14</a>.","apa":"Stricker, F. J., Seshadri, S., &#38; de Alaniz, J. R. (2022). Donor-Acceptor Stenhouse Adducts. In Z. Pianowski (Ed.), <i>Molecular Photoswitches: Chemistry, Properties, and Applications</i> (pp. 303–324). Weinheim: Wiley. <a href=\"https://doi.org/10.1002/9783527827626.ch14\">https://doi.org/10.1002/9783527827626.ch14</a>"},"publication_identifier":{"eisbn":["9783527827626"],"isbn":["9783527347681"]},"OA_type":"closed access","doi":"10.1002/9783527827626.ch14","date_published":"2022-06-03T00:00:00Z","editor":[{"full_name":"Pianowski, Zbigniew","first_name":"Zbigniew","last_name":"Pianowski"}],"page":"303-324","day":"03","month":"06","author":[{"id":"7aca2cfc-46cf-11f0-abd3-8c96b5186745","full_name":"Stricker, Friedrich J","last_name":"Stricker","first_name":"Friedrich J"},{"full_name":"Seshadri, Serena","first_name":"Serena","last_name":"Seshadri"},{"full_name":"de Alaniz, Javier Read","last_name":"de Alaniz","first_name":"Javier Read"}],"title":"Donor-Acceptor Stenhouse Adducts","article_processing_charge":"No","date_updated":"2026-05-12T08:16:46Z","language":[{"iso":"eng"}],"status":"public","year":"2022","user_id":"ba8df636-2132-11f1-aed0-ed93e2281fdd","quality_controlled":"1"},{"intvolume":"       940","type":"journal_article","publisher":"American Astronomical Society","publication_status":"published","abstract":[{"lang":"eng","text":"Rotation is typically assumed to induce strictly symmetric rotational splitting into the rotational multiplets of pure p- and g-modes. However, for evolved stars exhibiting mixed modes, avoided crossings between different multiplet components are known to yield asymmetric rotational splitting, in particular for near-degenerate mixed-mode pairs, where notional pure p-modes are fortuitously in resonance with pure g-modes. These near-degeneracy effects have been described in subgiants, but their consequences for the characterization of internal rotation in red giants have not previously been investigated in detail, in part owing to theoretical intractability. We employ new developments in the analytic theory of mixed-mode coupling to study these near-resonance phenomena. In the vicinity of the most p-dominated mixed modes, the near-degenerate intrinsic asymmetry from pure rotational splitting increases dramatically over the course of stellar evolution, and it depends strongly on the mode-mixing fraction ζ. We also find that a linear treatment of rotation remains viable for describing the underlying p- and g-modes, even when it does not for the resulting mixed modes undergoing these avoided crossings. We explore observational consequences for potential measurements of asymmetric mixed-mode splitting, which has been proposed as a magnetic-field diagnostic. Finally, we propose improved measurement techniques for rotational characterization, exploiting the linearity of rotational effects on the underlying p/g-modes, while still accounting for these mixed-mode coupling effects."}],"citation":{"chicago":"Ong, J. M. Joel, Lisa Annabelle Bugnet, and Sarbani Basu. “Mode Mixing and Rotational Splittings. I. Near-Degeneracy Effects Revisited.” <i>The Astrophysical Journal</i>. American Astronomical Society, 2022. <a href=\"https://doi.org/10.3847/1538-4357/ac97e7\">https://doi.org/10.3847/1538-4357/ac97e7</a>.","ieee":"J. M. J. Ong, L. A. Bugnet, and S. Basu, “Mode mixing and rotational splittings. I. Near-degeneracy effects revisited,” <i>The Astrophysical Journal</i>, vol. 940, no. 1. American Astronomical Society, 2022.","ista":"Ong JMJ, Bugnet LA, Basu S. 2022. Mode mixing and rotational splittings. I. Near-degeneracy effects revisited. The Astrophysical Journal. 940(1), 18.","short":"J.M.J. Ong, L.A. Bugnet, S. Basu, The Astrophysical Journal 940 (2022).","ama":"Ong JMJ, Bugnet LA, Basu S. Mode mixing and rotational splittings. I. Near-degeneracy effects revisited. <i>The Astrophysical Journal</i>. 2022;940(1). doi:<a href=\"https://doi.org/10.3847/1538-4357/ac97e7\">10.3847/1538-4357/ac97e7</a>","apa":"Ong, J. M. J., Bugnet, L. A., &#38; Basu, S. (2022). Mode mixing and rotational splittings. I. Near-degeneracy effects revisited. <i>The Astrophysical Journal</i>. American Astronomical Society. <a href=\"https://doi.org/10.3847/1538-4357/ac97e7\">https://doi.org/10.3847/1538-4357/ac97e7</a>","mla":"Ong, J. M. Joel, et al. “Mode Mixing and Rotational Splittings. I. Near-Degeneracy Effects Revisited.” <i>The Astrophysical Journal</i>, vol. 940, no. 1, 18, American Astronomical Society, 2022, doi:<a href=\"https://doi.org/10.3847/1538-4357/ac97e7\">10.3847/1538-4357/ac97e7</a>."},"doi":"10.3847/1538-4357/ac97e7","scopus_import":"1","issue":"1","month":"11","article_processing_charge":"No","volume":940,"language":[{"iso":"eng"}],"year":"2022","quality_controlled":"1","publication":"The Astrophysical Journal","extern":"1","_id":"13445","oa_version":"Published Version","article_number":"18","date_created":"2023-08-01T14:20:41Z","external_id":{"arxiv":["2210.01928"]},"oa":1,"publication_identifier":{"eissn":["1538-4357"],"issn":["0004-637X"]},"arxiv":1,"date_published":"2022-11-16T00:00:00Z","day":"16","article_type":"original","main_file_link":[{"open_access":"1","url":"https://arxiv.org/abs/2210.01928"}],"author":[{"full_name":"Ong, J. M. Joel","first_name":"J. M. Joel","last_name":"Ong"},{"id":"d9edb345-f866-11ec-9b37-d119b5234501","full_name":"Bugnet, Lisa Annabelle","orcid":"0000-0003-0142-4000","first_name":"Lisa Annabelle","last_name":"Bugnet"},{"full_name":"Basu, Sarbani","last_name":"Basu","first_name":"Sarbani"}],"title":"Mode mixing and rotational splittings. I. Near-degeneracy effects revisited","date_updated":"2023-09-06T07:27:45Z","keyword":["Space and Planetary Science","Astronomy and Astrophysics"],"status":"public","user_id":"2DF688A6-F248-11E8-B48F-1D18A9856A87"},{"user_id":"2DF688A6-F248-11E8-B48F-1D18A9856A87","date_updated":"2023-08-21T12:04:58Z","keyword":["Space and Planetary Science","Astronomy and Astrophysics"],"status":"public","main_file_link":[{"url":"https://doi.org/10.3847/1538-4357/aca295","open_access":"1"}],"title":"A panchromatic study of massive stars in the extremely metal-poor local group dwarf galaxy Leo A","author":[{"last_name":"Gull","first_name":"Maude","full_name":"Gull, Maude"},{"last_name":"Weisz","first_name":"Daniel R.","full_name":"Weisz, Daniel R."},{"full_name":"Senchyna, Peter","first_name":"Peter","last_name":"Senchyna"},{"first_name":"Nathan R.","last_name":"Sandford","full_name":"Sandford, Nathan R."},{"last_name":"Choi","first_name":"Yumi","full_name":"Choi, Yumi"},{"first_name":"Anna F.","last_name":"McLeod","full_name":"McLeod, Anna F."},{"full_name":"El-Badry, Kareem","first_name":"Kareem","last_name":"El-Badry"},{"full_name":"Götberg, Ylva Louise Linsdotter","orcid":"0000-0002-6960-6911","last_name":"Götberg","first_name":"Ylva Louise Linsdotter","id":"d0648d0c-0f64-11ee-a2e0-dd0faa2e4f7d"},{"full_name":"Gilbert, Karoline M.","first_name":"Karoline M.","last_name":"Gilbert"},{"full_name":"Boyer, Martha","first_name":"Martha","last_name":"Boyer"},{"full_name":"Dalcanton, Julianne J.","last_name":"Dalcanton","first_name":"Julianne J."},{"full_name":"GuhaThakurta, Puragra","last_name":"GuhaThakurta","first_name":"Puragra"},{"last_name":"Goldman","first_name":"Steven","full_name":"Goldman, Steven"},{"full_name":"Marigo, Paola","last_name":"Marigo","first_name":"Paola"},{"full_name":"McQuinn, Kristen B. W.","last_name":"McQuinn","first_name":"Kristen B. W."},{"full_name":"Pastorelli, Giada","last_name":"Pastorelli","first_name":"Giada"},{"full_name":"Stark, Daniel P.","first_name":"Daniel P.","last_name":"Stark"},{"full_name":"Skillman, Evan","first_name":"Evan","last_name":"Skillman"},{"first_name":"Yuan-sen","last_name":"Ting","full_name":"Ting, Yuan-sen"},{"full_name":"Williams, Benjamin F.","last_name":"Williams","first_name":"Benjamin F."}],"day":"27","article_type":"original","arxiv":1,"publication_identifier":{"issn":["0004-637X"],"eissn":["1538-4357"]},"date_published":"2022-12-27T00:00:00Z","oa":1,"external_id":{"arxiv":["2211.14349"]},"_id":"13451","date_created":"2023-08-03T10:10:25Z","oa_version":"Published Version","article_number":"206","extern":"1","publication":"The Astrophysical Journal","year":"2022","quality_controlled":"1","volume":941,"language":[{"iso":"eng"}],"article_processing_charge":"No","issue":"2","month":"12","doi":"10.3847/1538-4357/aca295","scopus_import":"1","abstract":[{"lang":"eng","text":"We characterize massive stars (M > 8 M⊙) in the nearby (D ∼ 0.8 Mpc) extremely metal-poor (Z ∼ 5% Z⊙) galaxy Leo A using Hubble Space Telescope ultraviolet (UV), optical, and near-infrared (NIR) imaging along with Keck/Low-Resolution Imaging Spectrograph and MMT/Binospec optical spectroscopy for 18 main-sequence OB stars. We find that: (a) 12 of our 18 stars show emission lines, despite not being associated with an H ii region, suggestive of stellar activity (e.g., mass loss, accretion, binary star interaction), which is consistent with previous predictions of enhanced activity at low metallicity; (b) six are Be stars, which are the first to be spectroscopically studied at such low metallicity—these Be stars have unusual panchromatic SEDs; (c) for stars well fit by the TLUSTY nonlocal thermodynamic equilibrium models, the photometric and spectroscopic values of $\\mathrm{log}({T}_{\\mathrm{eff}})$ and $\\mathrm{log}(g)$ agree to within ∼0.01 dex and ∼0.18 dex, respectively, indicating that near-UV/optical/NIR imaging can be used to reliably characterize massive (M ∼ 8–30 M⊙) main-sequence star properties relative to optical spectroscopy; (d) the properties of the most-massive stars in H II regions are consistent with constraints from previous nebular emission line studies; and (e) 13 stars with M > 8M⊙ are >40 pc from a known star cluster or H II region. Our sample comprises ∼50% of all known massive stars at Z ≲ 10% Z⊙with derived stellar parameters, high-quality optical spectra, and panchromatic photometry."}],"citation":{"ama":"Gull M, Weisz DR, Senchyna P, et al. A panchromatic study of massive stars in the extremely metal-poor local group dwarf galaxy Leo A. <i>The Astrophysical Journal</i>. 2022;941(2). doi:<a href=\"https://doi.org/10.3847/1538-4357/aca295\">10.3847/1538-4357/aca295</a>","short":"M. Gull, D.R. Weisz, P. Senchyna, N.R. Sandford, Y. Choi, A.F. McLeod, K. El-Badry, Y.L.L. Götberg, K.M. Gilbert, M. Boyer, J.J. Dalcanton, P. GuhaThakurta, S. Goldman, P. Marigo, K.B.W. McQuinn, G. Pastorelli, D.P. Stark, E. Skillman, Y. Ting, B.F. Williams, The Astrophysical Journal 941 (2022).","ieee":"M. Gull <i>et al.</i>, “A panchromatic study of massive stars in the extremely metal-poor local group dwarf galaxy Leo A,” <i>The Astrophysical Journal</i>, vol. 941, no. 2. American Astronomical Society, 2022.","chicago":"Gull, Maude, Daniel R. Weisz, Peter Senchyna, Nathan R. Sandford, Yumi Choi, Anna F. McLeod, Kareem El-Badry, et al. “A Panchromatic Study of Massive Stars in the Extremely Metal-Poor Local Group Dwarf Galaxy Leo A.” <i>The Astrophysical Journal</i>. American Astronomical Society, 2022. <a href=\"https://doi.org/10.3847/1538-4357/aca295\">https://doi.org/10.3847/1538-4357/aca295</a>.","ista":"Gull M, Weisz DR, Senchyna P, Sandford NR, Choi Y, McLeod AF, El-Badry K, Götberg YLL, Gilbert KM, Boyer M, Dalcanton JJ, GuhaThakurta P, Goldman S, Marigo P, McQuinn KBW, Pastorelli G, Stark DP, Skillman E, Ting Y, Williams BF. 2022. A panchromatic study of massive stars in the extremely metal-poor local group dwarf galaxy Leo A. The Astrophysical Journal. 941(2), 206.","apa":"Gull, M., Weisz, D. R., Senchyna, P., Sandford, N. R., Choi, Y., McLeod, A. F., … Williams, B. F. (2022). A panchromatic study of massive stars in the extremely metal-poor local group dwarf galaxy Leo A. <i>The Astrophysical Journal</i>. American Astronomical Society. <a href=\"https://doi.org/10.3847/1538-4357/aca295\">https://doi.org/10.3847/1538-4357/aca295</a>","mla":"Gull, Maude, et al. “A Panchromatic Study of Massive Stars in the Extremely Metal-Poor Local Group Dwarf Galaxy Leo A.” <i>The Astrophysical Journal</i>, vol. 941, no. 2, 206, American Astronomical Society, 2022, doi:<a href=\"https://doi.org/10.3847/1538-4357/aca295\">10.3847/1538-4357/aca295</a>."},"type":"journal_article","publisher":"American Astronomical Society","publication_status":"published","intvolume":"       941"},{"citation":{"mla":"Keszthelyi, Z., et al. “The Effects of Surface Fossil Magnetic Fields on Massive Star Evolution: IV. Grids of Models at Solar, LMC, and SMC Metallicities.” <i>Monthly Notices of the Royal Astronomical Society</i>, vol. 517, no. 2, Oxford University Press, 2022, pp. 2028–55, doi:<a href=\"https://doi.org/10.1093/mnras/stac2598\">10.1093/mnras/stac2598</a>.","apa":"Keszthelyi, Z., de Koter, A., Götberg, Y. L. L., Meynet, G., Brands, S. A., Petit, V., … ud-Doula, A. (2022). The effects of surface fossil magnetic fields on massive star evolution: IV. Grids of models at Solar, LMC, and SMC metallicities. <i>Monthly Notices of the Royal Astronomical Society</i>. Oxford University Press. <a href=\"https://doi.org/10.1093/mnras/stac2598\">https://doi.org/10.1093/mnras/stac2598</a>","ieee":"Z. Keszthelyi <i>et al.</i>, “The effects of surface fossil magnetic fields on massive star evolution: IV. Grids of models at Solar, LMC, and SMC metallicities,” <i>Monthly Notices of the Royal Astronomical Society</i>, vol. 517, no. 2. Oxford University Press, pp. 2028–2055, 2022.","ista":"Keszthelyi Z, de Koter A, Götberg YLL, Meynet G, Brands SA, Petit V, Carrington M, David-Uraz A, Geen ST, Georgy C, Hirschi R, Puls J, Ramalatswa KJ, Shultz ME, ud-Doula A. 2022. The effects of surface fossil magnetic fields on massive star evolution: IV. Grids of models at Solar, LMC, and SMC metallicities. Monthly Notices of the Royal Astronomical Society. 517(2), 2028–2055.","chicago":"Keszthelyi, Z, A de Koter, Ylva Louise Linsdotter Götberg, G Meynet, S A Brands, V Petit, M Carrington, et al. “The Effects of Surface Fossil Magnetic Fields on Massive Star Evolution: IV. Grids of Models at Solar, LMC, and SMC Metallicities.” <i>Monthly Notices of the Royal Astronomical Society</i>. Oxford University Press, 2022. <a href=\"https://doi.org/10.1093/mnras/stac2598\">https://doi.org/10.1093/mnras/stac2598</a>.","ama":"Keszthelyi Z, de Koter A, Götberg YLL, et al. The effects of surface fossil magnetic fields on massive star evolution: IV. Grids of models at Solar, LMC, and SMC metallicities. <i>Monthly Notices of the Royal Astronomical Society</i>. 2022;517(2):2028-2055. doi:<a href=\"https://doi.org/10.1093/mnras/stac2598\">10.1093/mnras/stac2598</a>","short":"Z. Keszthelyi, A. de Koter, Y.L.L. Götberg, G. Meynet, S.A. Brands, V. Petit, M. Carrington, A. David-Uraz, S.T. Geen, C. Georgy, R. Hirschi, J. Puls, K.J. Ramalatswa, M.E. Shultz, A. ud-Doula, Monthly Notices of the Royal Astronomical Society 517 (2022) 2028–2055."},"abstract":[{"text":"Magnetic fields can drastically change predictions of evolutionary models of massive stars via mass-loss quenching, magnetic braking, and efficient angular momentum transport, which we aim to quantify in this work. We use the MESA software instrument to compute an extensive main-sequence grid of stellar structure and evolution models, as well as isochrones, accounting for the effects attributed to a surface fossil magnetic field. The grid is densely populated in initial mass (3–60 M⊙), surface equatorial magnetic field strength (0–50 kG), and metallicity (representative of the Solar neighbourhood and the Magellanic Clouds). We use two magnetic braking and two chemical mixing schemes and compare the model predictions for slowly rotating, nitrogen-enriched (‘Group 2’) stars with observations in the Large Magellanic Cloud. We quantify a range of initial field strengths that allow for producing Group 2 stars and find that typical values (up to a few kG) lead to solutions. Between the subgrids, we find notable departures in surface abundances and evolutionary paths. In our magnetic models, chemical mixing is always less efficient compared to non-magnetic models due to the rapid spin-down. We identify that quasi-chemically homogeneous main sequence evolution by efficient mixing could be prevented by fossil magnetic fields. We recommend comparing this grid of evolutionary models with spectropolarimetric and spectroscopic observations with the goals of (i) revisiting the derived stellar parameters of known magnetic stars, and (ii) observationally constraining the uncertain magnetic braking and chemical mixing schemes.","lang":"eng"}],"scopus_import":"1","doi":"10.1093/mnras/stac2598","intvolume":"       517","publication_status":"published","publisher":"Oxford University Press","type":"journal_article","language":[{"iso":"eng"}],"volume":517,"quality_controlled":"1","year":"2022","month":"12","issue":"2","page":"2028-2055","article_processing_charge":"No","external_id":{"arxiv":["2209.06350"]},"oa":1,"date_published":"2022-12-01T00:00:00Z","publication_identifier":{"eissn":["1365-2966"],"issn":["0035-8711"]},"arxiv":1,"publication":"Monthly Notices of the Royal Astronomical Society","extern":"1","oa_version":"Preprint","date_created":"2023-08-03T10:10:37Z","_id":"13452","status":"public","keyword":["Space and Planetary Science","Astronomy and Astrophysics"],"date_updated":"2023-08-21T12:02:17Z","user_id":"2DF688A6-F248-11E8-B48F-1D18A9856A87","article_type":"original","day":"01","author":[{"last_name":"Keszthelyi","first_name":"Z","full_name":"Keszthelyi, Z"},{"first_name":"A","last_name":"de Koter","full_name":"de Koter, A"},{"id":"d0648d0c-0f64-11ee-a2e0-dd0faa2e4f7d","last_name":"Götberg","first_name":"Ylva Louise Linsdotter","full_name":"Götberg, Ylva Louise Linsdotter","orcid":"0000-0002-6960-6911"},{"last_name":"Meynet","first_name":"G","full_name":"Meynet, G"},{"last_name":"Brands","first_name":"S A","full_name":"Brands, S A"},{"last_name":"Petit","first_name":"V","full_name":"Petit, V"},{"full_name":"Carrington, M","last_name":"Carrington","first_name":"M"},{"full_name":"David-Uraz, A","first_name":"A","last_name":"David-Uraz"},{"first_name":"S T","last_name":"Geen","full_name":"Geen, S T"},{"last_name":"Georgy","first_name":"C","full_name":"Georgy, C"},{"first_name":"R","last_name":"Hirschi","full_name":"Hirschi, R"},{"last_name":"Puls","first_name":"J","full_name":"Puls, J"},{"first_name":"K J","last_name":"Ramalatswa","full_name":"Ramalatswa, K J"},{"first_name":"M E","last_name":"Shultz","full_name":"Shultz, M E"},{"full_name":"ud-Doula, A","first_name":"A","last_name":"ud-Doula"}],"main_file_link":[{"url":"https://arxiv.org/abs/2209.06350","open_access":"1"}],"title":"The effects of surface fossil magnetic fields on massive star evolution: IV. Grids of models at Solar, LMC, and SMC metallicities"},{"article_processing_charge":"No","month":"09","page":"620-624","issue":"9","quality_controlled":"1","year":"2022","language":[{"iso":"eng"}],"volume":16,"publication_status":"published","publisher":"Springer Nature","type":"journal_article","intvolume":"        16","scopus_import":"1","doi":"10.1038/s41566-022-01050-7","citation":{"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>","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>.","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.","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.","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.","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>"},"abstract":[{"lang":"eng","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."}],"title":"Probing topological phase transitions using high-harmonic generation","author":[{"full_name":"Heide, Christian","first_name":"Christian","last_name":"Heide"},{"last_name":"Kobayashi","first_name":"Yuki","full_name":"Kobayashi, Yuki"},{"id":"71b4d059-2a03-11ee-914d-dfa3beed6530","first_name":"Denitsa Rangelova","last_name":"Baykusheva","full_name":"Baykusheva, Denitsa Rangelova"},{"full_name":"Jain, Deepti","last_name":"Jain","first_name":"Deepti"},{"full_name":"Sobota, Jonathan A.","first_name":"Jonathan A.","last_name":"Sobota"},{"full_name":"Hashimoto, Makoto","last_name":"Hashimoto","first_name":"Makoto"},{"last_name":"Kirchmann","first_name":"Patrick S.","full_name":"Kirchmann, Patrick S."},{"full_name":"Oh, Seongshik","last_name":"Oh","first_name":"Seongshik"},{"full_name":"Heinz, Tony F.","last_name":"Heinz","first_name":"Tony F."},{"full_name":"Reis, David A.","first_name":"David A.","last_name":"Reis"},{"full_name":"Ghimire, Shambhu","last_name":"Ghimire","first_name":"Shambhu"}],"article_type":"original","day":"01","user_id":"2DF688A6-F248-11E8-B48F-1D18A9856A87","status":"public","keyword":["Atomic and Molecular Physics","and Optics","Electronic","Optical and Magnetic Materials"],"date_updated":"2023-08-22T07:20:09Z","oa_version":"None","date_created":"2023-08-09T13:07:51Z","_id":"13991","extern":"1","publication":"Nature Photonics","date_published":"2022-09-01T00:00:00Z","publication_identifier":{"eissn":["1749-4893"],"issn":["1749-4885"]}},{"user_id":"2DF688A6-F248-11E8-B48F-1D18A9856A87","date_updated":"2023-08-22T07:24:01Z","keyword":["Multidisciplinary"],"status":"public","author":[{"last_name":"Svoboda","first_name":"Vít","full_name":"Svoboda, Vít"},{"full_name":"Ram, Niraghatam Bhargava","last_name":"Ram","first_name":"Niraghatam Bhargava"},{"last_name":"Baykusheva","first_name":"Denitsa Rangelova","full_name":"Baykusheva, Denitsa Rangelova","id":"71b4d059-2a03-11ee-914d-dfa3beed6530"},{"full_name":"Zindel, Daniel","first_name":"Daniel","last_name":"Zindel"},{"first_name":"Max D. J.","last_name":"Waters","full_name":"Waters, Max D. J."},{"full_name":"Spenger, Benjamin","last_name":"Spenger","first_name":"Benjamin"},{"first_name":"Manuel","last_name":"Ochsner","full_name":"Ochsner, Manuel"},{"full_name":"Herburger, Holger","last_name":"Herburger","first_name":"Holger"},{"full_name":"Stohner, Jürgen","last_name":"Stohner","first_name":"Jürgen"},{"first_name":"Hans Jakob","last_name":"Wörner","full_name":"Wörner, Hans Jakob"}],"title":"Femtosecond photoelectron circular dichroism of chemical reactions","main_file_link":[{"url":"https://doi.org/10.1126/sciadv.abq2811","open_access":"1"}],"day":"15","article_type":"original","arxiv":1,"publication_identifier":{"eissn":["2375-2548"]},"date_published":"2022-07-15T00:00:00Z","oa":1,"external_id":{"pmid":["35857523"],"arxiv":["2206.04099"]},"_id":"13992","pmid":1,"date_created":"2023-08-09T13:08:04Z","oa_version":"Published Version","article_number":"abq2811","publication":"Science Advances","extern":"1","year":"2022","quality_controlled":"1","volume":8,"language":[{"iso":"eng"}],"article_processing_charge":"No","issue":"28","month":"07","doi":"10.1126/sciadv.abq2811","scopus_import":"1","abstract":[{"lang":"eng","text":"Understanding the chirality of molecular reaction pathways is essential for a broad range of fundamental and applied sciences. However, the current ability to probe chirality on the time scale of primary processes underlying chemical reactions remains very limited. Here, we demonstrate time-resolved photoelectron circular dichroism (TRPECD) with ultrashort circularly polarized vacuum-ultraviolet (VUV) pulses from a tabletop source. We demonstrate the capabilities of VUV-TRPECD by resolving the chirality changes in time during the photodissociation of atomic iodine from two chiral molecules. We identify several general key features of TRPECD, which include the ability to probe dynamical chirality along the complete photochemical reaction path, the sensitivity to the local chirality of the evolving scattering potential, and the influence of electron scattering off dissociating photofragments. Our results are interpreted by comparison with high-level ab-initio calculations of transient PECDs from molecular photoionization calculations. Our experimental and theoretical techniques define a general approach to femtochirality."}],"citation":{"mla":"Svoboda, Vít, et al. “Femtosecond Photoelectron Circular Dichroism of Chemical Reactions.” <i>Science Advances</i>, vol. 8, no. 28, abq2811, American Association for the Advancement of Science, 2022, doi:<a href=\"https://doi.org/10.1126/sciadv.abq2811\">10.1126/sciadv.abq2811</a>.","apa":"Svoboda, V., Ram, N. B., Baykusheva, D. R., Zindel, D., Waters, M. D. J., Spenger, B., … Wörner, H. J. (2022). Femtosecond photoelectron circular dichroism of chemical reactions. <i>Science Advances</i>. American Association for the Advancement of Science. <a href=\"https://doi.org/10.1126/sciadv.abq2811\">https://doi.org/10.1126/sciadv.abq2811</a>","ama":"Svoboda V, Ram NB, Baykusheva DR, et al. Femtosecond photoelectron circular dichroism of chemical reactions. <i>Science Advances</i>. 2022;8(28). doi:<a href=\"https://doi.org/10.1126/sciadv.abq2811\">10.1126/sciadv.abq2811</a>","short":"V. Svoboda, N.B. Ram, D.R. Baykusheva, D. Zindel, M.D.J. Waters, B. Spenger, M. Ochsner, H. Herburger, J. Stohner, H.J. Wörner, Science Advances 8 (2022).","chicago":"Svoboda, Vít, Niraghatam Bhargava Ram, Denitsa Rangelova Baykusheva, Daniel Zindel, Max D. J. Waters, Benjamin Spenger, Manuel Ochsner, Holger Herburger, Jürgen Stohner, and Hans Jakob Wörner. “Femtosecond Photoelectron Circular Dichroism of Chemical Reactions.” <i>Science Advances</i>. American Association for the Advancement of Science, 2022. <a href=\"https://doi.org/10.1126/sciadv.abq2811\">https://doi.org/10.1126/sciadv.abq2811</a>.","ieee":"V. Svoboda <i>et al.</i>, “Femtosecond photoelectron circular dichroism of chemical reactions,” <i>Science Advances</i>, vol. 8, no. 28. American Association for the Advancement of Science, 2022.","ista":"Svoboda V, Ram NB, Baykusheva DR, Zindel D, Waters MDJ, Spenger B, Ochsner M, Herburger H, Stohner J, Wörner HJ. 2022. Femtosecond photoelectron circular dichroism of chemical reactions. Science Advances. 8(28), abq2811."},"type":"journal_article","publisher":"American Association for the Advancement of Science","publication_status":"published","intvolume":"         8"},{"intvolume":"        76","publisher":"Swiss Chemical Society","type":"journal_article","publication_status":"published","abstract":[{"lang":"eng","text":"Photoionization is a process taking place on attosecond time scales. How its properties evolve from isolated particles to the condensed phase is an open question of both fundamental and practical relevance. Here, we review recent work that has advanced the study of photoionization dynamics from atoms to molecules, clusters and the liquid phase. The first measurements of molecular photoionization delays have revealed the attosecond dynamics of electron emission from a molecular shape resonance and their sensitivity to the molecular potential. Using electron-ion coincidence spectroscopy these measurements have been extended from isolated molecules to clusters. A continuous increase of the delays with the water-cluster size has been observed up to a size of 4-5 molecules, followed by a saturation towards larger clusters. Comparison with calculations has revealed a correlation of the time delay with the spatial extension of the created electron hole. Using cylindrical liquid-microjet techniques, these measurements have also been extended to liquid water, revealing a delay relative to isolated water molecules that was very similar to the largest water clusters studied. Detailed modeling based on Monte-Carlo simulations confirmed that these delays are dominated by the contributions of the first two solvation shells, which agrees with the results of the cluster measurements. These combined results open the perspective of experimentally characterizing the delocalization of electronic wave functions in complex systems and studying their evolution on attosecond time scales."}],"citation":{"mla":"Gong, Xiaochun, et al. “Attosecond Photoionization Dynamics: From Molecules over Clusters to the Liquid Phase.” <i>Chimia</i>, vol. 76, no. 6, Swiss Chemical Society, 2022, pp. 520–28, doi:<a href=\"https://doi.org/10.2533/chimia.2022.520\">10.2533/chimia.2022.520</a>.","apa":"Gong, X., Jordan, I., Huppert, M., Heck, S., Baykusheva, D. R., Jelovina, D., … Wörner, H. J. (2022). Attosecond photoionization dynamics: from molecules over clusters to the liquid phase. <i>Chimia</i>. Swiss Chemical Society. <a href=\"https://doi.org/10.2533/chimia.2022.520\">https://doi.org/10.2533/chimia.2022.520</a>","ieee":"X. Gong <i>et al.</i>, “Attosecond photoionization dynamics: from molecules over clusters to the liquid phase,” <i>Chimia</i>, vol. 76, no. 6. Swiss Chemical Society, pp. 520–528, 2022.","chicago":"Gong, Xiaochun, Inga Jordan, Martin Huppert, Saijoscha Heck, Denitsa Rangelova Baykusheva, Denis Jelovina, Axel Schild, and Hans Jakob Wörner. “Attosecond Photoionization Dynamics: From Molecules over Clusters to the Liquid Phase.” <i>Chimia</i>. Swiss Chemical Society, 2022. <a href=\"https://doi.org/10.2533/chimia.2022.520\">https://doi.org/10.2533/chimia.2022.520</a>.","ista":"Gong X, Jordan I, Huppert M, Heck S, Baykusheva DR, Jelovina D, Schild A, Wörner HJ. 2022. Attosecond photoionization dynamics: from molecules over clusters to the liquid phase. Chimia. 76(6), 520–528.","short":"X. Gong, I. Jordan, M. Huppert, S. Heck, D.R. Baykusheva, D. Jelovina, A. Schild, H.J. Wörner, Chimia 76 (2022) 520–528.","ama":"Gong X, Jordan I, Huppert M, et al. Attosecond photoionization dynamics: from molecules over clusters to the liquid phase. <i>Chimia</i>. 2022;76(6):520-528. doi:<a href=\"https://doi.org/10.2533/chimia.2022.520\">10.2533/chimia.2022.520</a>"},"doi":"10.2533/chimia.2022.520","scopus_import":"1","page":"520-528","issue":"6","month":"06","article_processing_charge":"No","volume":76,"language":[{"iso":"eng"}],"year":"2022","quality_controlled":"1","publication":"Chimia","extern":"1","_id":"13993","date_created":"2023-08-09T13:08:15Z","oa_version":"Published Version","oa":1,"publication_identifier":{"issn":["0009-4293"],"eissn":["2673-2424"]},"date_published":"2022-06-29T00:00:00Z","day":"29","article_type":"original","title":"Attosecond photoionization dynamics: from molecules over clusters to the liquid phase","author":[{"last_name":"Gong","first_name":"Xiaochun","full_name":"Gong, Xiaochun"},{"full_name":"Jordan, Inga","first_name":"Inga","last_name":"Jordan"},{"full_name":"Huppert, Martin","first_name":"Martin","last_name":"Huppert"},{"last_name":"Heck","first_name":"Saijoscha","full_name":"Heck, Saijoscha"},{"id":"71b4d059-2a03-11ee-914d-dfa3beed6530","last_name":"Baykusheva","first_name":"Denitsa Rangelova","full_name":"Baykusheva, Denitsa Rangelova"},{"first_name":"Denis","last_name":"Jelovina","full_name":"Jelovina, Denis"},{"first_name":"Axel","last_name":"Schild","full_name":"Schild, Axel"},{"full_name":"Wörner, Hans Jakob","first_name":"Hans Jakob","last_name":"Wörner"}],"main_file_link":[{"url":"https://doi.org/10.2533/chimia.2022.520","open_access":"1"}],"keyword":["General Medicine","General Chemistry"],"date_updated":"2023-08-22T07:26:39Z","status":"public","user_id":"2DF688A6-F248-11E8-B48F-1D18A9856A87"},{"citation":{"short":"D.R. Baykusheva, H. Jang, A.A. Husain, S. Lee, S.F.R. TenHuisen, P. Zhou, S. Park, H. Kim, J.-K. Kim, H.-D. Kim, M. Kim, S.-Y. Park, P. Abbamonte, B.J. Kim, G.D. Gu, Y. Wang, M. Mitrano, Physical Review X 12 (2022).","ama":"Baykusheva DR, Jang H, Husain AA, et al. Ultrafast renormalization of the on-site Coulomb repulsion in a cuprate superconductor. <i>Physical Review X</i>. 2022;12(1). doi:<a href=\"https://doi.org/10.1103/physrevx.12.011013\">10.1103/physrevx.12.011013</a>","ieee":"D. R. Baykusheva <i>et al.</i>, “Ultrafast renormalization of the on-site Coulomb repulsion in a cuprate superconductor,” <i>Physical Review X</i>, vol. 12, no. 1. American Physical Society, 2022.","chicago":"Baykusheva, Denitsa Rangelova, Hoyoung Jang, Ali A. Husain, Sangjun Lee, Sophia F. R. TenHuisen, Preston Zhou, Sunwook Park, et al. “Ultrafast Renormalization of the On-Site Coulomb Repulsion in a Cuprate Superconductor.” <i>Physical Review X</i>. American Physical Society, 2022. <a href=\"https://doi.org/10.1103/physrevx.12.011013\">https://doi.org/10.1103/physrevx.12.011013</a>.","ista":"Baykusheva DR, Jang H, Husain AA, Lee S, TenHuisen SFR, Zhou P, Park S, Kim H, Kim J-K, Kim H-D, Kim M, Park S-Y, Abbamonte P, Kim BJ, Gu GD, Wang Y, Mitrano M. 2022. Ultrafast renormalization of the on-site Coulomb repulsion in a cuprate superconductor. Physical Review X. 12(1), 011013.","mla":"Baykusheva, Denitsa Rangelova, et al. “Ultrafast Renormalization of the On-Site Coulomb Repulsion in a Cuprate Superconductor.” <i>Physical Review X</i>, vol. 12, no. 1, 011013, American Physical Society, 2022, doi:<a href=\"https://doi.org/10.1103/physrevx.12.011013\">10.1103/physrevx.12.011013</a>.","apa":"Baykusheva, D. R., Jang, H., Husain, A. A., Lee, S., TenHuisen, S. F. R., Zhou, P., … Mitrano, M. (2022). Ultrafast renormalization of the on-site Coulomb repulsion in a cuprate superconductor. <i>Physical Review X</i>. American Physical Society. <a href=\"https://doi.org/10.1103/physrevx.12.011013\">https://doi.org/10.1103/physrevx.12.011013</a>"},"abstract":[{"text":"Ultrafast lasers are an increasingly important tool to control and stabilize emergent phases in quantum materials. Among a variety of possible excitation protocols, a particularly intriguing route is the direct light engineering of microscopic electronic parameters, such as the electron hopping and the local Coulomb repulsion (Hubbard \r\nU). In this work, we use time-resolved x-ray absorption spectroscopy to demonstrate the light-induced renormalization of the Hubbard U in a cuprate superconductor, La1.905Ba0.095CuO4. We show that intense femtosecond laser pulses induce a substantial redshift of the upper Hubbard band while leaving the Zhang-Rice singlet energy unaffected. By comparing the experimental data to time-dependent spectra of single- and three-band Hubbard models, we assign this effect to an approximately 140-meV reduction of the on-site Coulomb repulsion on the copper sites. Our demonstration of a dynamical Hubbard U renormalization in a copper oxide paves the way to a novel strategy for the manipulation of superconductivity and magnetism as well as to the realization of other long-range-ordered phases in light-driven quantum materials.","lang":"eng"}],"scopus_import":"1","doi":"10.1103/physrevx.12.011013","intvolume":"        12","publication_status":"published","publisher":"American Physical Society","type":"journal_article","language":[{"iso":"eng"}],"volume":12,"quality_controlled":"1","year":"2022","month":"01","issue":"1","article_processing_charge":"No","external_id":{"arxiv":["2109.13229"]},"oa":1,"date_published":"2022-01-20T00:00:00Z","publication_identifier":{"eissn":["2160-3308"]},"arxiv":1,"extern":"1","publication":"Physical Review X","article_number":"011013","oa_version":"Published Version","date_created":"2023-08-09T13:08:26Z","_id":"13994","status":"public","date_updated":"2024-10-14T12:23:26Z","keyword":["General Physics and Astronomy"],"user_id":"2DF688A6-F248-11E8-B48F-1D18A9856A87","article_type":"original","day":"20","main_file_link":[{"open_access":"1","url":"https://doi.org/10.1103/PhysRevX.12.011013"}],"title":"Ultrafast renormalization of the on-site Coulomb repulsion in a cuprate superconductor","author":[{"id":"71b4d059-2a03-11ee-914d-dfa3beed6530","first_name":"Denitsa Rangelova","last_name":"Baykusheva","full_name":"Baykusheva, Denitsa Rangelova"},{"full_name":"Jang, Hoyoung","first_name":"Hoyoung","last_name":"Jang"},{"full_name":"Husain, Ali A.","first_name":"Ali A.","last_name":"Husain"},{"full_name":"Lee, Sangjun","first_name":"Sangjun","last_name":"Lee"},{"last_name":"TenHuisen","first_name":"Sophia F. R.","full_name":"TenHuisen, Sophia F. R."},{"last_name":"Zhou","first_name":"Preston","full_name":"Zhou, Preston"},{"first_name":"Sunwook","last_name":"Park","full_name":"Park, Sunwook"},{"last_name":"Kim","first_name":"Hoon","full_name":"Kim, Hoon"},{"last_name":"Kim","first_name":"Jin-Kwang","full_name":"Kim, Jin-Kwang"},{"full_name":"Kim, Hyeong-Do","first_name":"Hyeong-Do","last_name":"Kim"},{"full_name":"Kim, Minseok","first_name":"Minseok","last_name":"Kim"},{"first_name":"Sang-Youn","last_name":"Park","full_name":"Park, Sang-Youn"},{"full_name":"Abbamonte, Peter","first_name":"Peter","last_name":"Abbamonte"},{"first_name":"B. J.","last_name":"Kim","full_name":"Kim, B. J."},{"full_name":"Gu, G. D.","first_name":"G. D.","last_name":"Gu"},{"full_name":"Wang, Yao","last_name":"Wang","first_name":"Yao"},{"full_name":"Mitrano, Matteo","last_name":"Mitrano","first_name":"Matteo"}]},{"volume":151,"language":[{"iso":"eng"}],"year":"2022","conference":{"start_date":"2022-03-28","name":"AISTATS: Conference on Artificial Intelligence and Statistics","end_date":"2022-03-30","location":"Virtual"},"quality_controlled":"1","page":"8439-8457","month":"04","article_processing_charge":"No","abstract":[{"lang":"eng","text":" We propose a stochastic conditional gradient method (CGM) for minimizing convex finite-sum objectives formed as a sum of smooth and non-smooth terms. Existing CGM variants for this template either suffer from slow convergence rates, or require carefully increasing the batch size over the course of the algorithm’s execution, which leads to computing full gradients. In contrast, the proposed method, equipped with a stochastic average gradient (SAG) estimator, requires only one sample per iteration. Nevertheless, it guarantees fast convergence rates on par with more sophisticated variance reduction techniques. In applications we put special emphasis on problems with a large number of separable constraints. Such problems are prevalent among semidefinite programming (SDP) formulations arising in machine learning and theoretical computer science. We provide numerical experiments on matrix completion, unsupervised clustering, and sparsest-cut SDPs. "}],"citation":{"ieee":"G. Dresdner, M.-L. Vladarean, G. Rätsch, F. Locatello, V. Cevher, and A. Yurtsever, “ Faster one-sample stochastic conditional gradient method for composite convex minimization,” in <i>Proceedings of the 25th International Conference on Artificial Intelligence and Statistics</i>, Virtual, 2022, vol. 151, pp. 8439–8457.","ista":"Dresdner G, Vladarean M-L, Rätsch G, Locatello F, Cevher V, Yurtsever A. 2022.  Faster one-sample stochastic conditional gradient method for composite convex minimization. Proceedings of the 25th International Conference on Artificial Intelligence and Statistics. AISTATS: Conference on Artificial Intelligence and Statistics, PMLR, vol. 151, 8439–8457.","chicago":"Dresdner, Gideon, Maria-Luiza Vladarean, Gunnar Rätsch, Francesco Locatello, Volkan Cevher, and Alp Yurtsever. “ Faster One-Sample Stochastic Conditional Gradient Method for Composite Convex Minimization.” In <i>Proceedings of the 25th International Conference on Artificial Intelligence and Statistics</i>, 151:8439–57. ML Research Press, 2022.","short":"G. Dresdner, M.-L. Vladarean, G. Rätsch, F. Locatello, V. Cevher, A. Yurtsever, in:, Proceedings of the 25th International Conference on Artificial Intelligence and Statistics, ML Research Press, 2022, pp. 8439–8457.","ama":"Dresdner G, Vladarean M-L, Rätsch G, Locatello F, Cevher V, Yurtsever A.  Faster one-sample stochastic conditional gradient method for composite convex minimization. In: <i>Proceedings of the 25th International Conference on Artificial Intelligence and Statistics</i>. Vol 151. ML Research Press; 2022:8439-8457.","apa":"Dresdner, G., Vladarean, M.-L., Rätsch, G., Locatello, F., Cevher, V., &#38; Yurtsever, A. (2022).  Faster one-sample stochastic conditional gradient method for composite convex minimization. In <i>Proceedings of the 25th International Conference on Artificial Intelligence and Statistics</i> (Vol. 151, pp. 8439–8457). Virtual: ML Research Press.","mla":"Dresdner, Gideon, et al. “ Faster One-Sample Stochastic Conditional Gradient Method for Composite Convex Minimization.” <i>Proceedings of the 25th International Conference on Artificial Intelligence and Statistics</i>, vol. 151, ML Research Press, 2022, pp. 8439–57."},"scopus_import":"1","intvolume":"       151","publisher":"ML Research Press","type":"conference","publication_status":"published","date_updated":"2023-09-06T10:28:17Z","status":"public","user_id":"2DF688A6-F248-11E8-B48F-1D18A9856A87","department":[{"_id":"FrLo"}],"day":"01","title":" Faster one-sample stochastic conditional gradient method for composite convex minimization","author":[{"full_name":"Dresdner, Gideon","last_name":"Dresdner","first_name":"Gideon"},{"first_name":"Maria-Luiza","last_name":"Vladarean","full_name":"Vladarean, Maria-Luiza"},{"full_name":"Rätsch, Gunnar","last_name":"Rätsch","first_name":"Gunnar"},{"id":"26cfd52f-2483-11ee-8040-88983bcc06d4","full_name":"Locatello, Francesco","orcid":"0000-0002-4850-0683","first_name":"Francesco","last_name":"Locatello"},{"full_name":"Cevher, Volkan","first_name":"Volkan","last_name":"Cevher"},{"last_name":"Yurtsever","first_name":"Alp","full_name":"Yurtsever, Alp"}],"main_file_link":[{"open_access":"1","url":"https://arxiv.org/abs/2202.13212"}],"alternative_title":["PMLR"],"oa":1,"external_id":{"arxiv":["2202.13212"]},"arxiv":1,"publication_identifier":{"issn":["2640-3498"]},"date_published":"2022-04-01T00:00:00Z","extern":"1","publication":"Proceedings of the 25th International Conference on Artificial Intelligence and Statistics","_id":"14093","date_created":"2023-08-21T09:27:43Z","oa_version":"Preprint"},{"publication_identifier":{"issn":["0035-8711"],"eissn":["1365-2966"]},"arxiv":1,"date_published":"2022-12-01T00:00:00Z","external_id":{"arxiv":["2209.06350"]},"oa":1,"_id":"14098","oa_version":"Published Version","date_created":"2023-08-21T10:11:21Z","extern":"1","publication":"Monthly Notices of the Royal Astronomical Society","user_id":"2DF688A6-F248-11E8-B48F-1D18A9856A87","date_updated":"2023-08-22T13:18:34Z","status":"public","title":"The effects of surface fossil magnetic fields on massive star evolution: IV. Grids of models at solar, LMC, and SMC metallicities","author":[{"first_name":"Z.","last_name":"Keszthelyi","full_name":"Keszthelyi, Z."},{"full_name":"Koter, A. de","last_name":"Koter","first_name":"A. de"},{"last_name":"Götberg","first_name":"Ylva Louise Linsdotter","full_name":"Götberg, Ylva Louise Linsdotter","orcid":"0000-0002-6960-6911","id":"d0648d0c-0f64-11ee-a2e0-dd0faa2e4f7d"},{"full_name":"Meynet, G.","first_name":"G.","last_name":"Meynet"},{"last_name":"Brands","first_name":"S. A.","full_name":"Brands, S. A."},{"last_name":"Petit","first_name":"V.","full_name":"Petit, V."},{"last_name":"Carrington","first_name":"M.","full_name":"Carrington, M."},{"full_name":"A. David-Uraz, A. David-Uraz","first_name":"A. David-Uraz","last_name":"A. David-Uraz"},{"full_name":"Geen, S. T.","first_name":"S. T.","last_name":"Geen"},{"full_name":"Georgy, C.","first_name":"C.","last_name":"Georgy"},{"full_name":"Hirschi, R.","first_name":"R.","last_name":"Hirschi"},{"full_name":"Puls, J.","first_name":"J.","last_name":"Puls"},{"first_name":"K. J.","last_name":"Ramalatswa","full_name":"Ramalatswa, K. J."},{"full_name":"Shultz, M. E.","last_name":"Shultz","first_name":"M. E."},{"first_name":"A. ud-Doula","last_name":"A. ud-Doula","full_name":"A. ud-Doula, A. ud-Doula"}],"main_file_link":[{"url":"https://doi.org/10.1093/mnras/stac2598","open_access":"1"}],"day":"01","article_type":"original","doi":"10.1093/mnras/stac2598","scopus_import":"1","abstract":[{"lang":"eng","text":"Magnetic fields can drastically change predictions of evolutionary models of massive stars via mass-loss quenching, magnetic braking, and efficient angular momentum transport, which we aim to quantify in this work. We use the MESA software instrument to compute an extensive main-sequence grid of stellar structure and evolution models, as well as isochrones, accounting for the effects attributed to a surface fossil magnetic field. The grid is densely populated in initial mass (3–60 M⊙), surface equatorial magnetic field strength (0–50 kG), and metallicity (representative of the Solar neighbourhood and the Magellanic Clouds). We use two magnetic braking and two chemical mixing schemes and compare the model predictions for slowly rotating, nitrogen-enriched (‘Group 2’) stars with observations in the Large Magellanic Cloud. We quantify a range of initial field strengths that allow for producing Group 2 stars and find that typical values (up to a few kG) lead to solutions. Between the subgrids, we find notable departures in surface abundances and evolutionary paths. In our magnetic models, chemical mixing is always less efficient compared to non-magnetic models due to the rapid spin-down. We identify that quasi-chemically homogeneous main sequence evolution by efficient mixing could be prevented by fossil magnetic fields. We recommend comparing this grid of evolutionary models with spectropolarimetric and spectroscopic observations with the goals of (i) revisiting the derived stellar parameters of known magnetic stars, and (ii) observationally constraining the uncertain magnetic braking and chemical mixing schemes."}],"citation":{"mla":"Keszthelyi, Z., et al. “The Effects of Surface Fossil Magnetic Fields on Massive Star Evolution: IV. Grids of Models at Solar, LMC, and SMC Metallicities.” <i>Monthly Notices of the Royal Astronomical Society</i>, vol. 517, no. 2, Oxford Academic, 2022, pp. 2028–55, doi:<a href=\"https://doi.org/10.1093/mnras/stac2598\">10.1093/mnras/stac2598</a>.","apa":"Keszthelyi, Z., Koter, A. de, Götberg, Y. L. L., Meynet, G., Brands, S. A., Petit, V., … A. ud-Doula, A. ud-Doula. (2022). The effects of surface fossil magnetic fields on massive star evolution: IV. Grids of models at solar, LMC, and SMC metallicities. <i>Monthly Notices of the Royal Astronomical Society</i>. Oxford Academic. <a href=\"https://doi.org/10.1093/mnras/stac2598\">https://doi.org/10.1093/mnras/stac2598</a>","short":"Z. Keszthelyi, A. de Koter, Y.L.L. Götberg, G. Meynet, S.A. Brands, V. Petit, M. Carrington, A.D.-U. A. David-Uraz, S.T. Geen, C. Georgy, R. Hirschi, J. Puls, K.J. Ramalatswa, M.E. Shultz, A. ud-Doula A. ud-Doula, Monthly Notices of the Royal Astronomical Society 517 (2022) 2028–2055.","ama":"Keszthelyi Z, Koter A de, Götberg YLL, et al. The effects of surface fossil magnetic fields on massive star evolution: IV. Grids of models at solar, LMC, and SMC metallicities. <i>Monthly Notices of the Royal Astronomical Society</i>. 2022;517(2):2028-2055. doi:<a href=\"https://doi.org/10.1093/mnras/stac2598\">10.1093/mnras/stac2598</a>","ista":"Keszthelyi Z, Koter A de, Götberg YLL, Meynet G, Brands SA, Petit V, Carrington M, A. David-Uraz AD-U, Geen ST, Georgy C, Hirschi R, Puls J, Ramalatswa KJ, Shultz ME, A. ud-Doula A ud-Doula. 2022. The effects of surface fossil magnetic fields on massive star evolution: IV. Grids of models at solar, LMC, and SMC metallicities. Monthly Notices of the Royal Astronomical Society. 517(2), 2028–2055.","chicago":"Keszthelyi, Z., A. de Koter, Ylva Louise Linsdotter Götberg, G. Meynet, S. A. Brands, V. Petit, M. Carrington, et al. “The Effects of Surface Fossil Magnetic Fields on Massive Star Evolution: IV. Grids of Models at Solar, LMC, and SMC Metallicities.” <i>Monthly Notices of the Royal Astronomical Society</i>. Oxford Academic, 2022. <a href=\"https://doi.org/10.1093/mnras/stac2598\">https://doi.org/10.1093/mnras/stac2598</a>.","ieee":"Z. Keszthelyi <i>et al.</i>, “The effects of surface fossil magnetic fields on massive star evolution: IV. Grids of models at solar, LMC, and SMC metallicities,” <i>Monthly Notices of the Royal Astronomical Society</i>, vol. 517, no. 2. Oxford Academic, pp. 2028–2055, 2022."},"publisher":"Oxford Academic","type":"journal_article","publication_status":"published","intvolume":"       517","year":"2022","quality_controlled":"1","volume":517,"language":[{"iso":"eng"}],"article_processing_charge":"No","page":"2028-2055","issue":"2","month":"12"},{"extern":"1","publication":"arXiv","_id":"14099","type":"preprint","date_created":"2023-08-21T10:11:37Z","publication_status":"submitted","article_number":"2211.07060","oa_version":"Submitted Version","abstract":[{"text":"Magnetism can greatly impact the evolution of stars. In some stars with OBA spectral types there is direct evidence via the Zeeman effect for stable, large-scale magnetospheres, which lead to the spin-down of the stellar surface and reduced mass loss. So far, a comprehensive grid of stellar structure and evolution models accounting for these effects was lacking. For this reason, we computed and studied models with two magnetic braking and two chemical mixing schemes in three metallicity environments with the MESA software instrument. We find notable differences between the subgrids, which affects the model predictions and thus the detailed characterisation of stars. We are able to quantify the impact of magnetic fields in terms of preventing quasi-chemically homogeneous evolution and producing slowly-rotating, nitrogen-enriched (\"Group 2\") stars. Our model grid is fully open access and open source.","lang":"eng"}],"oa":1,"citation":{"ista":"Keszthelyi Z, Koter A de, Götberg YLL, Meynet G, Brands SA, Petit V, Carrington M, A. David-Uraz AD-U, Geen ST, Georgy C, Hirschi R, Puls J, Ramalatswa KJ, Shultz ME, A. ud-Doula A ud-Doula. Spin-down and reduced mass loss in early-type stars with large-scale magnetic fields. arXiv, 2211.07060.","ieee":"Z. Keszthelyi <i>et al.</i>, “Spin-down and reduced mass loss in early-type stars with large-scale magnetic fields,” <i>arXiv</i>. .","chicago":"Keszthelyi, Z., A. de Koter, Ylva Louise Linsdotter Götberg, G. Meynet, S. A. Brands, V. Petit, M. Carrington, et al. “Spin-down and Reduced Mass Loss in Early-Type Stars with Large-Scale Magnetic Fields.” <i>ArXiv</i>, n.d. <a href=\"https://doi.org/10.48550/arXiv.2211.07060\">https://doi.org/10.48550/arXiv.2211.07060</a>.","ama":"Keszthelyi Z, Koter A de, Götberg YLL, et al. Spin-down and reduced mass loss in early-type stars with large-scale magnetic fields. <i>arXiv</i>. doi:<a href=\"https://doi.org/10.48550/arXiv.2211.07060\">10.48550/arXiv.2211.07060</a>","short":"Z. Keszthelyi, A. de Koter, Y.L.L. Götberg, G. Meynet, S.A. Brands, V. Petit, M. Carrington, A.D.-U. A. David-Uraz, S.T. Geen, C. Georgy, R. Hirschi, J. Puls, K.J. Ramalatswa, M.E. Shultz, A. ud-Doula A. ud-Doula, ArXiv (n.d.).","apa":"Keszthelyi, Z., Koter, A. de, Götberg, Y. L. L., Meynet, G., Brands, S. A., Petit, V., … A. ud-Doula, A. ud-Doula. (n.d.). Spin-down and reduced mass loss in early-type stars with large-scale magnetic fields. <i>arXiv</i>. <a href=\"https://doi.org/10.48550/arXiv.2211.07060\">https://doi.org/10.48550/arXiv.2211.07060</a>","mla":"Keszthelyi, Z., et al. “Spin-down and Reduced Mass Loss in Early-Type Stars with Large-Scale Magnetic Fields.” <i>ArXiv</i>, 2211.07060, doi:<a href=\"https://doi.org/10.48550/arXiv.2211.07060\">10.48550/arXiv.2211.07060</a>."},"external_id":{"arxiv":["2211.07060"]},"arxiv":1,"doi":"10.48550/arXiv.2211.07060","date_published":"2022-11-14T00:00:00Z","day":"14","month":"11","author":[{"last_name":"Keszthelyi","first_name":"Z.","full_name":"Keszthelyi, Z."},{"full_name":"Koter, A. de","first_name":"A. de","last_name":"Koter"},{"id":"d0648d0c-0f64-11ee-a2e0-dd0faa2e4f7d","orcid":"0000-0002-6960-6911","full_name":"Götberg, Ylva Louise Linsdotter","last_name":"Götberg","first_name":"Ylva Louise Linsdotter"},{"first_name":"G.","last_name":"Meynet","full_name":"Meynet, G."},{"full_name":"Brands, S. A.","last_name":"Brands","first_name":"S. A."},{"full_name":"Petit, V.","first_name":"V.","last_name":"Petit"},{"last_name":"Carrington","first_name":"M.","full_name":"Carrington, M."},{"first_name":"A. David-Uraz","last_name":"A. David-Uraz","full_name":"A. David-Uraz, A. David-Uraz"},{"last_name":"Geen","first_name":"S. T.","full_name":"Geen, S. T."},{"last_name":"Georgy","first_name":"C.","full_name":"Georgy, C."},{"full_name":"Hirschi, R.","first_name":"R.","last_name":"Hirschi"},{"full_name":"Puls, J.","last_name":"Puls","first_name":"J."},{"full_name":"Ramalatswa, K. J.","first_name":"K. J.","last_name":"Ramalatswa"},{"first_name":"M. E.","last_name":"Shultz","full_name":"Shultz, M. E."},{"full_name":"A. ud-Doula, A. ud-Doula","first_name":"A. ud-Doula","last_name":"A. ud-Doula"}],"main_file_link":[{"url":"https://doi.org/10.48550/arXiv.2211.07060","open_access":"1"}],"title":"Spin-down and reduced mass loss in early-type stars with large-scale magnetic fields","article_processing_charge":"No","date_updated":"2023-08-22T13:20:15Z","language":[{"iso":"eng"}],"status":"public","year":"2022","user_id":"2DF688A6-F248-11E8-B48F-1D18A9856A87"}]