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Proceedings Paper

Mid-infrared interband cascade photodetectors with high quantum efficiency
Author(s): Zhao-Bing Tian; Anjali Singh; Kevin Rigg; Sanjay Krishna
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Paper Abstract

Antimony-based Interband Cascade (IC) photodetectors are emerging as viable candidates for highperformance infrared applications, especially at high operating temperatures. In our previous IC detector designs using InAs/GaSb Type-II superlattices, the quantum efficiency was relatively low as the designs were optimized for high signal to noise ratio. Here we report our recent development of low-noise mid-IR IC photodetectors with high external quantum efficiency. By adopting IC detectors with thicker absorber designs, the quantum efficiency of these mid-IR IC detectors has been increased up to 35%. These IC devices continue to have low-dark current and high temperature operations. Some further analysis on the device characteristics is also presented.

Paper Details

Date Published: 13 February 2016
PDF: 8 pages
Proc. SPIE 9755, Quantum Sensing and Nano Electronics and Photonics XIII, 975512 (13 February 2016); doi: 10.1117/12.2208217
Show Author Affiliations
Zhao-Bing Tian, The Univ. of New Mexico (United States)
Anjali Singh, Northrop Grumman Electronic Systems (United States)
Kevin Rigg, Northrop Grumman Electronic Systems (United States)
Sanjay Krishna, The Univ. of New Mexico (United States)

Published in SPIE Proceedings Vol. 9755:
Quantum Sensing and Nano Electronics and Photonics XIII
Manijeh Razeghi, Editor(s)

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