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Proceedings Paper

Quantum well and quantum dot based detector arrays for infrared imaging applications
Author(s): S. D. Gunapala; S. V. Bandara; D. Z. Ting; J. K. Liu; C. J. Hill; J. M. Mumolo; E. Kurth; J. Woolaway; P. D. LeVan; M. Z. Tidrow
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Paper Abstract

A mid-wavelength infrared (MWIR) and long-wavelength infrared (LWIR) 1024x1024 pixel quantum well infrared photodetector (QWIP) focal plane arrays (FPAs) have been demonstrated with excellent imagery. MWIR FPA has given noise equivalent differential temperature (NEΔT) of 19 mK at 95K operating temperature and LWIR FPA has given NEΔT of 13 mK at 70K operating temperature. In addition, epitaxially grown self-assembled InAs/InGaAs/GaAs quantum dots (QDs) are exploited for the development of large-format FPAs. The QD devices were fabricated into the first LWIR 640x512 pixel QDIP FPA, which has produced excellent infrared imagery with NEΔT of 40 mK at 60K operating temperature.

Paper Details

Date Published: 26 September 2007
PDF: 12 pages
Proc. SPIE 6678, Infrared Spaceborne Remote Sensing and Instrumentation XV, 66780R (26 September 2007); doi: 10.1117/12.729492
Show Author Affiliations
S. D. Gunapala, Jet Propulsion Lab. (United States)
S. V. Bandara, Jet Propulsion Lab. (United States)
D. Z. Ting, Jet Propulsion Lab. (United States)
J. K. Liu, Jet Propulsion Lab. (United States)
C. J. Hill, Jet Propulsion Lab. (United States)
J. M. Mumolo, Jet Propulsion Lab. (United States)
E. Kurth, Jet Propulsion Lab. (United States)
J. Woolaway, FLIR Systems Inc. (United States)
P. D. LeVan, Air Force Research Lab. (United States)
M. Z. Tidrow, Missile Defense Agency/DV (United States)

Published in SPIE Proceedings Vol. 6678:
Infrared Spaceborne Remote Sensing and Instrumentation XV
Marija Strojnik-Scholl, Editor(s)

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