Cargando…

Continuously-tunable light–matter coupling in optical microcavities with 2D semiconductors

A theoretical variation between the two distinct light–matter coupling regimes, namely weak and strong coupling, becomes uniquely feasible in open optical Fabry—Pérot microcavities with low mode volume, as discussed here. In combination with monolayers of transition-metal dichalcogenides (TMDCs) suc...

Descripción completa

Detalles Bibliográficos
Autores principales: Wall, Franziska, Mey, Oliver, Schneider, Lorenz Maximilian, Rahimi-Iman, Arash
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Nature Publishing Group UK 2020
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7237431/
https://www.ncbi.nlm.nih.gov/pubmed/32427933
http://dx.doi.org/10.1038/s41598-020-64909-1
_version_ 1783536313493880832
author Wall, Franziska
Mey, Oliver
Schneider, Lorenz Maximilian
Rahimi-Iman, Arash
author_facet Wall, Franziska
Mey, Oliver
Schneider, Lorenz Maximilian
Rahimi-Iman, Arash
author_sort Wall, Franziska
collection PubMed
description A theoretical variation between the two distinct light–matter coupling regimes, namely weak and strong coupling, becomes uniquely feasible in open optical Fabry—Pérot microcavities with low mode volume, as discussed here. In combination with monolayers of transition-metal dichalcogenides (TMDCs) such as WS(2), which exhibits a large exciton oscillator strength and binding energy, the room-temperature observation of hybrid bosonic quasiparticles, referred to as exciton–polaritons and characterized by a Rabi splitting, comes into reach. In this context, our simulations using the transfer-matrix method show how to tailor and alter the coupling strength actively by varying the relative field strength at the excitons’ position – exploiting a tunable cavity length, a transparent PMMA spacer layer and angle-dependencies of optical resonances. Continuously tunable coupling for future experiments is hereby proposed, capable of real-time adjustable Rabi splitting as well as switching between the two coupling regimes. Being nearly independent of the chosen material, the suggested structure could also be used in the context of light–matter-coupling experiments with quantum dots, molecules or quantum wells. While the adjustable polariton energy levels could be utilized for polariton-chemistry or optical sensing, cavities that allow working at the exceptional point promise the exploration of topological properties of that point.
format Online
Article
Text
id pubmed-7237431
institution National Center for Biotechnology Information
language English
publishDate 2020
publisher Nature Publishing Group UK
record_format MEDLINE/PubMed
spelling pubmed-72374312020-05-29 Continuously-tunable light–matter coupling in optical microcavities with 2D semiconductors Wall, Franziska Mey, Oliver Schneider, Lorenz Maximilian Rahimi-Iman, Arash Sci Rep Article A theoretical variation between the two distinct light–matter coupling regimes, namely weak and strong coupling, becomes uniquely feasible in open optical Fabry—Pérot microcavities with low mode volume, as discussed here. In combination with monolayers of transition-metal dichalcogenides (TMDCs) such as WS(2), which exhibits a large exciton oscillator strength and binding energy, the room-temperature observation of hybrid bosonic quasiparticles, referred to as exciton–polaritons and characterized by a Rabi splitting, comes into reach. In this context, our simulations using the transfer-matrix method show how to tailor and alter the coupling strength actively by varying the relative field strength at the excitons’ position – exploiting a tunable cavity length, a transparent PMMA spacer layer and angle-dependencies of optical resonances. Continuously tunable coupling for future experiments is hereby proposed, capable of real-time adjustable Rabi splitting as well as switching between the two coupling regimes. Being nearly independent of the chosen material, the suggested structure could also be used in the context of light–matter-coupling experiments with quantum dots, molecules or quantum wells. While the adjustable polariton energy levels could be utilized for polariton-chemistry or optical sensing, cavities that allow working at the exceptional point promise the exploration of topological properties of that point. Nature Publishing Group UK 2020-05-19 /pmc/articles/PMC7237431/ /pubmed/32427933 http://dx.doi.org/10.1038/s41598-020-64909-1 Text en © The Author(s) 2020 Open Access This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in a credit line to the material. If material is not included in the article’s Creative Commons license and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/.
spellingShingle Article
Wall, Franziska
Mey, Oliver
Schneider, Lorenz Maximilian
Rahimi-Iman, Arash
Continuously-tunable light–matter coupling in optical microcavities with 2D semiconductors
title Continuously-tunable light–matter coupling in optical microcavities with 2D semiconductors
title_full Continuously-tunable light–matter coupling in optical microcavities with 2D semiconductors
title_fullStr Continuously-tunable light–matter coupling in optical microcavities with 2D semiconductors
title_full_unstemmed Continuously-tunable light–matter coupling in optical microcavities with 2D semiconductors
title_short Continuously-tunable light–matter coupling in optical microcavities with 2D semiconductors
title_sort continuously-tunable light–matter coupling in optical microcavities with 2d semiconductors
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7237431/
https://www.ncbi.nlm.nih.gov/pubmed/32427933
http://dx.doi.org/10.1038/s41598-020-64909-1
work_keys_str_mv AT wallfranziska continuouslytunablelightmattercouplinginopticalmicrocavitieswith2dsemiconductors
AT meyoliver continuouslytunablelightmattercouplinginopticalmicrocavitieswith2dsemiconductors
AT schneiderlorenzmaximilian continuouslytunablelightmattercouplinginopticalmicrocavitieswith2dsemiconductors
AT rahimiimanarash continuouslytunablelightmattercouplinginopticalmicrocavitieswith2dsemiconductors