---
_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. <i>Advanced Optical
    Materials</i>. 2023;11(13). doi:<a href="https://doi.org/10.1002/adom.202202631">10.1002/adom.202202631</a>
  apa: Khatoniar, M., Yama, N., Ghazaryan, A., Guddala, S., Ghaemi, P., Majumdar,
    K., &#38; Menon, V. (2023). Optical manipulation of Layer–Valley coherence via
    strong exciton–photon coupling in microcavities. <i>Advanced Optical Materials</i>.
    Wiley. <a href="https://doi.org/10.1002/adom.202202631">https://doi.org/10.1002/adom.202202631</a>
  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.” <i>Advanced Optical
    Materials</i>. Wiley, 2023. <a href="https://doi.org/10.1002/adom.202202631">https://doi.org/10.1002/adom.202202631</a>.
  ieee: M. Khatoniar <i>et al.</i>, “Optical manipulation of Layer–Valley coherence
    via strong exciton–photon coupling in microcavities,” <i>Advanced Optical Materials</i>,
    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.” <i>Advanced Optical Materials</i>,
    vol. 11, no. 13, 2202631, Wiley, 2023, doi:<a href="https://doi.org/10.1002/adom.202202631">10.1002/adom.202202631</a>.
  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'
...
---
_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.
    <i>Advanced Optical Materials</i>. 2016;4(9):1373-1377. doi:<a href="https://doi.org/10.1002/adom.201600364">10.1002/adom.201600364</a>
  apa: Samanta, D., &#38; Klajn, R. (2016). Aqueous light-controlled self-assembly
    of nanoparticles. <i>Advanced Optical Materials</i>. Wiley. <a href="https://doi.org/10.1002/adom.201600364">https://doi.org/10.1002/adom.201600364</a>
  chicago: Samanta, Dipak, and Rafal Klajn. “Aqueous Light-Controlled Self-Assembly
    of Nanoparticles.” <i>Advanced Optical Materials</i>. Wiley, 2016. <a href="https://doi.org/10.1002/adom.201600364">https://doi.org/10.1002/adom.201600364</a>.
  ieee: D. Samanta and R. Klajn, “Aqueous light-controlled self-assembly of nanoparticles,”
    <i>Advanced Optical Materials</i>, 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.” <i>Advanced Optical Materials</i>, vol. 4, no. 9, Wiley, 2016,
    pp. 1373–77, doi:<a href="https://doi.org/10.1002/adom.201600364">10.1002/adom.201600364</a>.
  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: 2023-08-07T12:37:53Z
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'
...