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5 March 2022 Monolayer exciton polariton
Arka Majumdar
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Proceedings Volume PC12003, 2D Photonic Materials and Devices V; PC120030C (2022) https://doi.org/10.1117/12.2614655
Event: SPIE OPTO, 2022, San Francisco, California, United States
Abstract
Monolayer transition-metal dichalcogenides (TMDs) are the first truly two-dimensional (2D) semiconductor, providing an excellent platform to investigate light−matter interaction in the 2D limit. The inherently strong excitonic response in monolayer TMDs can be further enhanced by exploiting the temporal confinement of light in nanophotonic structures. Here, we demonstrate a 2D exciton−polariton system by strongly coupling atomically thin tungsten diselenide (WSe2) monolayer to a silicon nitride (SiN) metasurface. Via energy-momentum spectroscopy of the WSe2-metasurface system, we observed the characteristic anticrossing of the polariton dispersion both in the reflection and photoluminescence spectrum. A Rabi splitting of 18 meV was observed which matched well with our numerical simulation.
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Arka Majumdar "Monolayer exciton polariton", Proc. SPIE PC12003, 2D Photonic Materials and Devices V, PC120030C (5 March 2022); https://doi.org/10.1117/12.2614655
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KEYWORDS
Polaritons
Excitons
Luminescence
Nanophotonics
Numerical simulations
Optical engineering
Semiconductors
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