Plasmonic GeSn photodetectors for enhanced photo detection at 2 µm

Hao Zhou; Lin Zhang; Shaoteng Wu; Qimiao Chen; Bongkwon Son; Chuan Seng Tan

doi:10.1364/CLEO_AT.2021.ATu1T.5

Conference on Lasers and Electro-Optics
OSA Technical Digest (Optica Publishing Group, 2021),
paper ATu1T.5
•https://doi.org/10.1364/CLEO_AT.2021.ATu1T.5

Plasmonic GeSn photodetectors for enhanced photo detection at 2 µm

Hao Zhou, Lin Zhang, Shaoteng Wu, Qimiao Chen, Bongkwon Son, and Chuan Seng Tan

CLEO: Applications and Technology 2021

San Jose, California United States
9–14 May 2021
ISBN: 978-1-943580-91-0

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H. Zhou, L. Zhang, S. Wu, Q. Chen, B. Son, and C. S. Tan, "Plasmonic GeSn photodetectors for enhanced photo detection at 2 µm," in Conference on Lasers and Electro-Optics, J. Kang, S. Tomasulo, I. Ilev, D. Müller, N. Litchinitser, S. Polyakov, V. Podolskiy, J. Nunn, C. Dorrer, T. Fortier, Q. Gan, and C. Saraceno, eds., OSA Technical Digest (Optica Publishing Group, 2021), paper ATu1T.5.

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Abstract

Gold hole-array nanostructure was incorporated into GeSn photodetectors to enhance the optical absorption at 2 μm. The surface plasmon resonance near Au/GeSn interface benefits a two times higher responsivity at 2 μm.

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