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High-efficiency plasmon-enhanced GeSn photodetectors operating at 2 µm

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Abstract

Au/GeSn grating structure was designed and adopted in GeSn photodetectors to enhance the optical absorption at 2 μm. A 3× improvement in responsivity to 0.386 A/W was achieved under TM-polarized illumination.

© 2021 The Author(s)

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Poster Presentation

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