Materials, Photonic Devices, and Sensors

High performance of graphene photodetector using double-cavity structure

[+] Author Affiliations
Du Mingdi, Jia Yaqiong

Hunan Institute of Technology, Department of Electric and Information Engineering, Hengyang, China

Hunan Institute of Technology, Key Laboratory of Signal and Information Processing, Hengyang, China

He Shuzhen

Hunan Institute of Technology, Department of Electric and Information Engineering, Hengyang, China

Opt. Eng. 56(6), 067108 (Jun 14, 2017). doi:10.1117/1.OE.56.6.067108
History: Received March 8, 2017; Accepted May 23, 2017
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Abstract.  A double-cavity graphene photodetector consisting of filtering cavity and absorption cavity with high performance is proposed. The device has an ultranarrow response linewidth and high quantum efficiency as well as high response speed. By taking full advantage of the double cavity, the structure parameters of the photodetector are deeply optimized, and 88% peak quantum efficiency with 0.75-nm linewidth is obtained. It is believed that the double-cavity graphene photodetector has promising and potential application in a high-speed density wavelength-division multiplexing system.

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© 2017 Society of Photo-Optical Instrumentation Engineers

Citation

Du Mingdi ; Jia Yaqiong and He Shuzhen
"High performance of graphene photodetector using double-cavity structure", Opt. Eng. 56(6), 067108 (Jun 14, 2017). ; http://dx.doi.org/10.1117/1.OE.56.6.067108


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