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High-Speed Drift-Enhanced Multiple-Junction Photodetector with Si-Based Subwavelength Gratings

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Abstract:

We demonstrate a new multiple-junction photodetector incorporating concentric circular subwavelength gratings as a broadband reflector. A quantum efficiency of 81% and a 3dB bandwidth of 121 GHz are simultaneously obtained due to the suitable design of junction number and absorption layer thickness.

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Periodical:

Applied Mechanics and Materials (Volumes 411-414)

Pages:

1517-1520

DOI:

https://doi.org/10.4028/www.scientific.net/AMM.411-414.1517

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Cite this paper

Online since:

September 2013

Authors:

Ke Rui Zhang, Yong Qing Huang, Xiao Feng Duan

Keywords:

Bandwidth-Efficiency Product, Multiple-Junction Photodetector, Si-Based Subwavelength Gratings

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© 2013 Trans Tech Publications Ltd. All Rights Reserved

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References

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