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Proceedings Paper

Novel quantum well, quantum dot, and superlattice heterostructure based infrared detectors
Author(s): David Z.-Y. Ting; Sumith V. Bandara; Cory J. Hill; Sarath D. Gunapala; Yia-Chung Chang; H. C. Liu; C. Y. Song; Alexander Soibel; Jason Mumolo; Jean Nguyen; John K. Liu; Sam A. Keo; Sir B. Rafol; E. R. Blazejewski
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Paper Abstract

We report work on several quantum structure based infrared detectors. We describe the concept and experimental progress of the quantum well intra-subband photodetector (QWISP), which is closely related to the quantum-well infrared photodetector (QWIP), but uses the dopant-assisted intra-subband absorption mechanism in quantum wells for normal-incidence far infrared/terahertz radiation detection. We describe the concept of the submonolayer quantum dot infrared photodetector (SML QDIP), and report experimental device results on long-wavelength infrared detection, and imaging results from a mega-pixel focal plane arrays, which produced clear infrared images up to 80K. We discuss how superlattice heterostructures, particularly those using unipolar barriers, can offer significant performance advantages over homojunction superlattices in infrared detection. We also summary recent device results on a superlattice heterostructure based barrier infrared detectors (BIRDs).

Paper Details

Date Published: 7 May 2009
PDF: 15 pages
Proc. SPIE 7298, Infrared Technology and Applications XXXV, 729805 (7 May 2009); doi: 10.1117/12.818879
Show Author Affiliations
David Z.-Y. Ting, Jet Propulsion Lab. (United States)
Sumith V. Bandara, Jet Propulsion Lab. (United States)
Cory J. Hill, Jet Propulsion Lab. (United States)
Sarath D. Gunapala, Jet Propulsion Lab. (United States)
Yia-Chung Chang, Univ. of Illinois at Urbana-Champaign (United States)
H. C. Liu, National Research Council Canada (Canada)
C. Y. Song, National Research Council Canada (Canada)
Alexander Soibel, Jet Propulsion Lab. (United States)
Jason Mumolo, Jet Propulsion Lab. (United States)
Jean Nguyen, Jet Propulsion Lab. (United States)
John K. Liu, Jet Propulsion Lab. (United States)
Sam A. Keo, Jet Propulsion Lab. (United States)
Sir B. Rafol, Infravision Systems (United States)
E. R. Blazejewski, Jet Propulsion Lab. (United States)

Published in SPIE Proceedings Vol. 7298:
Infrared Technology and Applications XXXV
Bjørn F. Andresen; Gabor F. Fulop; Paul R. Norton, Editor(s)

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