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Proceedings Paper

Towards flexible quantum well infrared photodetectors
Author(s): Shilong Li; Han Wang; Honglou Zhen; Yongfeng Mei; Wei Lu
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Paper Abstract

Quantum well infrared photodetectors (QWIPs) based on GaAs have attracted much attention owing to its matured material growth technique. In order to obey the selection rule of polarization, various grating structures have been attached to planar QWIPs. Recently, we experimentally demonstrated that strained planar QWIPs could be self-rolled up into an out-of-plane tubular geometry so that the polarization selection rule is sufficiently subdued without any extra grating structure. Such self-rolled-up QWIPs show a broadband enhancement of responsivity and detectivity over a wide incident angle. In this paper, both wave-optics and ray-optics simulations are performed to clarify the underlying physics. The well-defined curved QWIPs pave a path towards flexible QWIPs for flexible optoelectronics.

Paper Details

Date Published: 3 May 2017
PDF: 6 pages
Proc. SPIE 10177, Infrared Technology and Applications XLIII, 101772B (3 May 2017); doi: 10.1117/12.2264226
Show Author Affiliations
Shilong Li, Shanghai Institute of Technical Physics (China)
Han Wang, Shanghai Institute of Technical Physics (China)
Univ. of Chinese Academy of Sciences (China)
Honglou Zhen, Shanghai Institute of Technical Physics (China)
Yongfeng Mei, Fudan Univ. (China)
Wei Lu, Shanghai Institute of Technical Physics (China)

Published in SPIE Proceedings Vol. 10177:
Infrared Technology and Applications XLIII
Bjørn F. Andresen; Gabor F. Fulop; Charles M. Hanson; John Lester Miller; Paul R. Norton, Editor(s)

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