High-efficiency plasmon-enhanced GeSn photodetectors operating at 2 mu m

Hao Zhou,Lin Zhang,Jinchao Tong,Shaoteng Wu,Qimiao Chen,Bongkwon Son,Dao Hua Zhang,Chuan Seng Tan

conference on lasers and electro optics（2021）

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摘要

Au/GeSn grating structure was designed and adopted in GeSn photodetectors to enhance the optical absorption at 2 mu m. A 3x improvement in responsivity to 0.386 A/W was achieved under TM-polarized illumination. (C) 2021 The Author(s)

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关键词

(040.5160) Photodetectors,(130.3060) Infrared

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