Chiral Exciton Polaritons in a WS<sub>2</sub> Monolayer
Transition metal dichalcogenides (TMDs) mono layers exhibit a unique band structure that allows for valley-selective optical excitation at the KlK’ points of the Brillouin zone. The formation of K and K’ excitons, which possess high oscillator strength and strong photoluminescence, can be controlled by circularly polarized light, which opens exciting possibilities for spintronics and quantum information technologies [1]. In the experiment, however, the degree of circular polarization of KlK’ excitons is usually quenched due to non-elastic scattering events, which can be suppressed by strong exciton-photon coupling [2]. Chiral photonic bound states in the continuum (BICs) emerge as a promising candidate for further enhancing the polarization properties in TMDs due to their polarization selectivity and strong confinement of photons [3].
Authors
- Elena A. Ostrovskaya (ORCID: https://orcid.org/0000-0002-8657-6048)
- Sebastian Klimmer (ORCID: https://orcid.org/0000-0002-8582-3588)
- Giancarlo Soavi (ORCID: https://orcid.org/0000-0003-2434-2251)
- Eliezer Estrecho (ORCID: https://orcid.org/0000-0003-0523-6533)
- Thomas Pertsch (ORCID: https://orcid.org/0000-0003-4889-0869)
- Matthias Wurdack (ORCID: https://orcid.org/0000-0003-3759-9574)
- Ivan Iorsh (ORCID: https://orcid.org/0000-0003-4992-6122)
- Zlata Fedorova (ORCID: https://orcid.org/0000-0003-4401-1978)
- Isabelle Staude (ORCID: https://orcid.org/0000-0001-8021-572X)
- Huachun Deng
- Falk Eilenberger (ORCID: https://orcid.org/0000-0002-4646-2484)
- Qinghai Song
- Tobias Bucher
- Yuri S. Kivshar
- Sarka Vavreckova
Institutions
- Australian National University (AU)
- Queen's University (CA)
- Harbin Institute of Technology (CN)
- Centre for Quantum Computation and Communication Technology (AU)
- Friedrich Schiller University Jena (DE)
Publication Details
- Published
- 2025-06-23
- DOI
- https://doi.org/10.1109/cleo/europe-eqec65582.2025.11109394
- Primary Topic
- Strong Light-Matter Interactions
- Type
- article
- Field-Weighted Citation Impact
- 0.00