All-van der Waals metadevices

Artur R. Davoyan

doi:10.1117/12.2678158

4 October 2023 All-van der Waals metadevices

Artur R. Davoyan

Proceedings Volume PC12647, Active Photonic Platforms (APP) 2023; PC126470J (2023) https://doi.org/10.1117/12.2678158
Event: SPIE Nanoscience + Engineering, 2023, San Diego, California, United States

Abstract

Van der Waals materials offer a unique platform for controlling light materials interaction. In this talk I will discuss emergent all van der Walls systems for integrated nanophotonics and for infrared radiation taming. Specifically, I will demonstrate that exciton-photon interaction in bulk transition metal dichalcogenides can lead to highly confined optical modes. I will then discuss our theoretical and experimental studies of deeply subwavelength MoS2 integrated optical devices. I will show that 1-micron light can be efficiently controlled in devices that are just 60 nm thick. While exciton photon interaction is manifested at optical frequencies, at mid infrared we utilize strong light-phonon coupling to control emissivity. In particular, I will demonstrate that bulk hBN allows selectively controlling optical emission across 6 - 12 micron range.

Conference Presentation

Citation Download Citation

Artur R. Davoyan "All-van der Waals metadevices", Proc. SPIE PC12647, Active Photonic Platforms (APP) 2023, PC126470J (4 October 2023); https://doi.org/10.1117/12.2678158

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