---
_id: '12836'
abstract:
- lang: eng
text: Coherent control and manipulation of quantum degrees of freedom such as spins
forms the basis of emerging quantum technologies. In this context, the robust
valley degree of freedom and the associated valley pseudospin found in two-dimensional
transition metal dichalcogenides is a highly attractive platform. Valley polarization
and coherent superposition of valley states have been observed in these systems
even up to room temperature. Control of valley coherence is an important building
block for the implementation of valley qubit. Large magnetic fields or high-power
lasers have been used in the past to demonstrate the control (initialization and
rotation) of the valley coherent states. Here, the control of layer–valley coherence
via strong coupling of valley excitons in bilayer WS2 to microcavity photons is
demonstrated by exploiting the pseudomagnetic field arising in optical cavities
owing to the transverse electric–transverse magnetic (TE–TM)mode splitting. The
use of photonic structures to generate pseudomagnetic fields which can be used
to manipulate exciton-polaritons presents an attractive approach to control optical
responses without the need for large magnets or high-intensity optical pump powers.
acknowledgement: The authors acknowledge insightful discussions with Prof. Wang Yao
and graphics by Rezlind Bushati. M.K. and N.Y. acknowledge support from NSF grants
NSF DMR-1709996 and NSF OMA 1936276. S.G. was supported by the Army Research Office
Multidisciplinary University Research Initiative program (W911NF-17-1-0312) and
V.M.M. by the Army Research Office grant (W911NF-22-1-0091). K.M acknowledges the
SPARC program that supported his collaboration with the CUNY team. The authors acknowledge
the Nanofabrication facility at the CUNY Advanced Science Research Center where
the cavity devices were fabricated.
article_number: '2202631'
article_processing_charge: No
article_type: original
arxiv: 1
author:
- first_name: Mandeep
full_name: Khatoniar, Mandeep
last_name: Khatoniar
- first_name: Nicholas
full_name: Yama, Nicholas
last_name: Yama
- first_name: Areg
full_name: Ghazaryan, Areg
id: 4AF46FD6-F248-11E8-B48F-1D18A9856A87
last_name: Ghazaryan
orcid: 0000-0001-9666-3543
- first_name: Sriram
full_name: Guddala, Sriram
last_name: Guddala
- first_name: Pouyan
full_name: Ghaemi, Pouyan
last_name: Ghaemi
- first_name: Kausik
full_name: Majumdar, Kausik
last_name: Majumdar
- first_name: Vinod
full_name: Menon, Vinod
last_name: Menon
citation:
ama: Khatoniar M, Yama N, Ghazaryan A, et al. Optical manipulation of Layer–Valley
coherence via strong exciton–photon coupling in microcavities. Advanced Optical
Materials. 2023;11(13). doi:10.1002/adom.202202631
apa: Khatoniar, M., Yama, N., Ghazaryan, A., Guddala, S., Ghaemi, P., Majumdar,
K., & Menon, V. (2023). Optical manipulation of Layer–Valley coherence via
strong exciton–photon coupling in microcavities. Advanced Optical Materials.
Wiley. https://doi.org/10.1002/adom.202202631
chicago: Khatoniar, Mandeep, Nicholas Yama, Areg Ghazaryan, Sriram Guddala, Pouyan
Ghaemi, Kausik Majumdar, and Vinod Menon. “Optical Manipulation of Layer–Valley
Coherence via Strong Exciton–Photon Coupling in Microcavities.” Advanced Optical
Materials. Wiley, 2023. https://doi.org/10.1002/adom.202202631.
ieee: M. Khatoniar et al., “Optical manipulation of Layer–Valley coherence
via strong exciton–photon coupling in microcavities,” Advanced Optical Materials,
vol. 11, no. 13. Wiley, 2023.
ista: Khatoniar M, Yama N, Ghazaryan A, Guddala S, Ghaemi P, Majumdar K, Menon V.
2023. Optical manipulation of Layer–Valley coherence via strong exciton–photon
coupling in microcavities. Advanced Optical Materials. 11(13), 2202631.
mla: Khatoniar, Mandeep, et al. “Optical Manipulation of Layer–Valley Coherence
via Strong Exciton–Photon Coupling in Microcavities.” Advanced Optical Materials,
vol. 11, no. 13, 2202631, Wiley, 2023, doi:10.1002/adom.202202631.
short: M. Khatoniar, N. Yama, A. Ghazaryan, S. Guddala, P. Ghaemi, K. Majumdar,
V. Menon, Advanced Optical Materials 11 (2023).
date_created: 2023-04-16T22:01:09Z
date_published: 2023-07-04T00:00:00Z
date_updated: 2023-10-04T11:15:17Z
day: '04'
department:
- _id: MiLe
doi: 10.1002/adom.202202631
external_id:
arxiv:
- '2211.08755'
isi:
- '000963866700001'
intvolume: ' 11'
isi: 1
issue: '13'
language:
- iso: eng
main_file_link:
- open_access: '1'
url: https://doi.org/10.48550/arXiv.2211.08755
month: '07'
oa: 1
oa_version: Preprint
publication: Advanced Optical Materials
publication_identifier:
eissn:
- 2195-1071
publication_status: published
publisher: Wiley
quality_controlled: '1'
scopus_import: '1'
status: public
title: Optical manipulation of Layer–Valley coherence via strong exciton–photon coupling
in microcavities
type: journal_article
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
volume: 11
year: '2023'
...
---
OA_place: publisher
OA_type: hybrid
_id: '21511'
abstract:
- lang: eng
text: 'Converting ionizing radiation into visible light is essential in a wide range
of fundamental and industrial applications, such as electromagnetic calorimeters
in high-energy particle detectors, electron detectors, image intensifiers, and
X-ray imaging. These different areas of technology all rely on scintillators or
phosphors, i.e., materials that emit light upon bombardment by high-energy particles.
In all cases, the emission is through spontaneous emission. The fundamental nature
of spontaneous emission poses limitations on all these technologies, imposing
an intrinsic trade-off between efficiency and resolution in all imaging applications:
thicker phosphors are more efficient due to their greater stopping power, which
however comes at the expense of image blurring due to light spread inside the
thicker phosphors. Here, the concept of inverse-designed nanophotonic scintillators
is proposed, which can overcome the trade-off between resolution and efficiency
by reshaping the intrinsic spontaneous emission. To exemplify the concept, multilayer
phosphor nanostructures are designed and these nanostructures are compared to
state-of-the-art phosphor screens in image intensifiers, showing a threefold resolution
enhancement simultaneous with a threefold efficiency enhancement. The enabling
concept is applying the ubiquitous Purcell effect for the first time in a new
context—for improving image resolution. Looking forward, this approach directly
applies to a wide range of technologies, including X-ray imaging applications.'
article_number: '2202318'
article_processing_charge: No
article_type: original
author:
- first_name: Avner
full_name: Shultzman, Avner
last_name: Shultzman
- first_name: Ohad
full_name: Segal, Ohad
last_name: Segal
- first_name: Yaniv
full_name: Kurman, Yaniv
last_name: Kurman
- first_name: Charles
full_name: Roques-Carmes, Charles
id: e2e68fc9-6505-11ef-a541-eb4e72cc3e82
last_name: Roques-Carmes
- first_name: Ido
full_name: Kaminer, Ido
last_name: Kaminer
citation:
ama: Shultzman A, Segal O, Kurman Y, Roques-Carmes C, Kaminer I. Enhanced imaging
using inverse design of nanophotonic scintillators. Advanced Optical Materials.
2023;11(8). doi:10.1002/adom.202202318
apa: Shultzman, A., Segal, O., Kurman, Y., Roques-Carmes, C., & Kaminer, I.
(2023). Enhanced imaging using inverse design of nanophotonic scintillators. Advanced
Optical Materials. Wiley. https://doi.org/10.1002/adom.202202318
chicago: Shultzman, Avner, Ohad Segal, Yaniv Kurman, Charles Roques-Carmes, and
Ido Kaminer. “Enhanced Imaging Using Inverse Design of Nanophotonic Scintillators.”
Advanced Optical Materials. Wiley, 2023. https://doi.org/10.1002/adom.202202318.
ieee: A. Shultzman, O. Segal, Y. Kurman, C. Roques-Carmes, and I. Kaminer, “Enhanced
imaging using inverse design of nanophotonic scintillators,” Advanced Optical
Materials, vol. 11, no. 8. Wiley, 2023.
ista: Shultzman A, Segal O, Kurman Y, Roques-Carmes C, Kaminer I. 2023. Enhanced
imaging using inverse design of nanophotonic scintillators. Advanced Optical Materials.
11(8), 2202318.
mla: Shultzman, Avner, et al. “Enhanced Imaging Using Inverse Design of Nanophotonic
Scintillators.” Advanced Optical Materials, vol. 11, no. 8, 2202318, Wiley,
2023, doi:10.1002/adom.202202318.
short: A. Shultzman, O. Segal, Y. Kurman, C. Roques-Carmes, I. Kaminer, Advanced
Optical Materials 11 (2023).
date_created: 2026-03-30T12:22:47Z
date_published: 2023-02-17T00:00:00Z
date_updated: 2026-04-27T10:38:22Z
day: '17'
ddc:
- '530'
doi: 10.1002/adom.202202318
extern: '1'
intvolume: ' 11'
issue: '8'
language:
- iso: eng
main_file_link:
- open_access: '1'
url: https://doi.org/10.1002/adom.202202318
month: '02'
oa: 1
oa_version: Published Version
publication: Advanced Optical Materials
publication_identifier:
eissn:
- 2195-1071
publication_status: published
publisher: Wiley
quality_controlled: '1'
scopus_import: '1'
status: public
title: Enhanced imaging using inverse design of nanophotonic scintillators
tmp:
image: /images/cc_by.png
legal_code_url: https://creativecommons.org/licenses/by/4.0/legalcode
name: Creative Commons Attribution 4.0 International Public License (CC-BY 4.0)
short: CC BY (4.0)
type: journal_article
user_id: ba8df636-2132-11f1-aed0-ed93e2281fdd
volume: 11
year: '2023'
...
---
_id: '13387'
abstract:
- lang: eng
text: Come on in, the water's fine! Non-photoresponsive nanoparticles can be reversibly
assembled using light by placing them in an aqueous solution of a photoacid.
Upon exposure to visible light, the photoacid reduces the pH of the solution,
which induces attractive interactions between the nanoparticles. In the dark,
the resulting nanoparticle aggregates spontaneously disassemble. The process can
be repeated many times.
article_processing_charge: No
article_type: original
author:
- first_name: Dipak
full_name: Samanta, Dipak
last_name: Samanta
- first_name: Rafal
full_name: Klajn, Rafal
id: 8e84690e-1e48-11ed-a02b-a1e6fb8bb53b
last_name: Klajn
citation:
ama: Samanta D, Klajn R. Aqueous light-controlled self-assembly of nanoparticles.
Advanced Optical Materials. 2016;4(9):1373-1377. doi:10.1002/adom.201600364
apa: Samanta, D., & Klajn, R. (2016). Aqueous light-controlled self-assembly
of nanoparticles. Advanced Optical Materials. Wiley. https://doi.org/10.1002/adom.201600364
chicago: Samanta, Dipak, and Rafal Klajn. “Aqueous Light-Controlled Self-Assembly
of Nanoparticles.” Advanced Optical Materials. Wiley, 2016. https://doi.org/10.1002/adom.201600364.
ieee: D. Samanta and R. Klajn, “Aqueous light-controlled self-assembly of nanoparticles,”
Advanced Optical Materials, vol. 4, no. 9. Wiley, pp. 1373–1377, 2016.
ista: Samanta D, Klajn R. 2016. Aqueous light-controlled self-assembly of nanoparticles.
Advanced Optical Materials. 4(9), 1373–1377.
mla: Samanta, Dipak, and Rafal Klajn. “Aqueous Light-Controlled Self-Assembly of
Nanoparticles.” Advanced Optical Materials, vol. 4, no. 9, Wiley, 2016,
pp. 1373–77, doi:10.1002/adom.201600364.
short: D. Samanta, R. Klajn, Advanced Optical Materials 4 (2016) 1373–1377.
date_created: 2023-08-01T09:42:49Z
date_published: 2016-09-01T00:00:00Z
date_updated: 2024-10-14T12:16:34Z
day: '01'
doi: 10.1002/adom.201600364
extern: '1'
intvolume: ' 4'
issue: '9'
keyword:
- Atomic and Molecular Physics
- and Optics
- Electronic
- Optical and Magnetic Materials
language:
- iso: eng
month: '09'
oa_version: None
page: 1373-1377
publication: Advanced Optical Materials
publication_identifier:
eissn:
- 2195-1071
publication_status: published
publisher: Wiley
quality_controlled: '1'
scopus_import: '1'
status: public
title: Aqueous light-controlled self-assembly of nanoparticles
type: journal_article
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
volume: 4
year: '2016'
...