Van der Waals heterostructure-based wavelength selective infrared photodetectors using plasmonic metasurfaces

Shinpei Ogawa; Shoichiro Fukushima; Masaaki Shimatani

doi:10.1117/12.2617368

27 May 2022 Van der Waals heterostructure-based wavelength selective infrared photodetectors using plasmonic metasurfaces

Shinpei Ogawa, Shoichiro Fukushima, Masaaki Shimatani

Author Affiliations +

Proceedings Volume 12107, Infrared Technology and Applications XLVIII; 121071C (2022) https://doi.org/10.1117/12.2617368
Event: SPIE Defense + Commercial Sensing, 2022, Orlando, Florida, United States

Abstract

We theoretically propose van der Waals (vdW) heterostructure-based wavelength selective infrared (IR) photodetectors using plasmonic metasurfaces (PMs), consisting of top micropatches, graphene on a hexagonal boron nitride (hBN) vdW heterostructure layer, and a bottom reflector. The hBN ensures the vdW heterostructures maintain high carrier mobility in the graphene. The wavelength selective detection of the graphene can be controlled mainly by the micropatch size over a wide range from the middle- to long-wavelength IR regions. The wavelength can also be electrically tuned by the chemical potential of the graphene. These results will contribute to developing high-performance wavelength tunable graphene/hBN-based IR photodetectors.

Conference Presentation

Citation Download Citation

Shinpei Ogawa, Shoichiro Fukushima, and Masaaki Shimatani "Van der Waals heterostructure-based wavelength selective infrared photodetectors using plasmonic metasurfaces", Proc. SPIE 12107, Infrared Technology and Applications XLVIII, 121071C (27 May 2022); https://doi.org/10.1117/12.2617368

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