Perfect absorption and cavity-free polaritons in MoS2 (Conference Presentation)

Adriana Canales; Oleg Kotov; Timur Shegai

doi:10.1117/12.2633138

3 October 2022 Perfect absorption and cavity-free polaritons in MoS₂ (Conference Presentation)

Adriana Canales, Oleg Kotov, Timur Shegai

Proceedings Volume PC12195, Metamaterials, Metadevices, and Metasystems 2022; PC121950G (2022) https://doi.org/10.1117/12.2633138
Event: SPIE Nanoscience + Engineering, 2022, San Diego, California, United States

Abstract

The perfect absorption of light has been traditionally achieved by layered structures whose thickness is at least λ/4n. To achieve electromagnetically thin perfect absorbers, research has focused on metallic metasurfaces which require complex nanofabrication. MoS2 is a promising material for ultra-thin perfect absorbers due to the high oscillator strength of its excitonic transitions and layered nature. However previous efforts to increase MoS2 absorption involve intricate fabrication. Our work shows enhanced absorption in monolayers, perfect absorption and exciton-polaritons in MoS2 slabs. This work simultaneously presents a simple approach to achieve perfect absorption in ultra-thin non-metallic structures and to observe cavity-free exciton-polaritons.

Conference Presentation

Citation Download Citation

Adriana Canales, Oleg Kotov, and Timur Shegai "Perfect absorption and cavity-free polaritons in MoS₂ (Conference Presentation)", Proc. SPIE PC12195, Metamaterials, Metadevices, and Metasystems 2022, PC121950G (3 October 2022); https://doi.org/10.1117/12.2633138

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