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14 June 2017 High performance of graphene photodetector using double-cavity structure
Du Mingdi, Jia Yaqiong, He Shuzhen
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Optical Engineering, Vol. 56, Issue 6, 067108 (June 2017). https://doi.org/10.1117/1.OE.56.6.067108
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.
© 2017 Society of Photo-Optical Instrumentation Engineers (SPIE) 0091-3286/2017/$25.00 © 2017 SPIE
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Du Mingdi, Jia Yaqiong, and He Shuzhen "High performance of graphene photodetector using double-cavity structure," Optical Engineering 56(6), 067108 (14 June 2017). https://doi.org/10.1117/1.OE.56.6.067108
Received: 8 March 2017; Accepted: 23 May 2017; Published: 14 June 2017
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KEYWORDS
Photodetectors
Graphene
Quantum efficiency
Absorption
Absorption filters
Electronic filtering
Wavelength division multiplexing
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