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Tunable infrared photodetector based on graphene plasmons controlled by ferroelectric domains
Author(s): Junxiong Guo; Shangdong Li; Yizhen Ke; Linna Mao; Wen Huang; Xiaosheng Zhang
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Paper Abstract

A tunable infrared photodetector based on graphene surface plasmon polaritons (SPP) controlled by the ferroelectric domains was demonstrated in this work. We designed the ferroelectric layer to build periodically ferroelectric domains, producing a non-volatile electric field for the convenience of tuning graphene SPP to resonate with the incident wavelengths. This novel strategy facilitates the improvement of absorption of incident photons without additional biasing or patterning graphene, compared with the reported graphene plasmonic photodetectors. In our proposed photodetector, the graphene carriers could be readily tuned by varying ferroelectric microstructure, yielding a tunable absorption peak in the range from 6 μm to 20 μm and significantly enhanced photo-responsivity.

Paper Details

Date Published: 20 December 2019
PDF: 5 pages
Proc. SPIE 11209, Eleventh International Conference on Information Optics and Photonics (CIOP 2019), 112091F (20 December 2019); doi: 10.1117/12.2544774
Show Author Affiliations
Junxiong Guo, Univ. of Electronic Science and Technology of China (China)
Shangdong Li, Univ. of Electronic Science and Technology of China (China)
Yizhen Ke, Univ. of Electronic Science and Technology of China (China)
Linna Mao, Univ. of Electronic Science and Technology of China (China)
Wen Huang, Univ. of Electronic Science and Technology of China (China)
Xiaosheng Zhang, Univ. of Electronic Science and Technology of China (China)


Published in SPIE Proceedings Vol. 11209:
Eleventh International Conference on Information Optics and Photonics (CIOP 2019)
Hannan Wang, Editor(s)

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