Share Email Print

Proceedings Paper

Demonstration of 1024x1024 pixel dual-band QWIP focal plane array
Author(s): S. D. Gunapala; S. V. Bandara; J. K. Liu; J. M. Mumolo; D. Z. Ting; C. J. Hill; J. Nguyen; S. B. Rafol
Format Member Price Non-Member Price
PDF $17.00 $21.00

Paper Abstract

QWIPs are well known for their stability, high pixel-pixel uniformity and high pixel operability which are quintessential parameters for large area imaging arrays. In this paper we report the first demonstration of the megapixel-simultaneously-readable and pixel-co-registered dual-band QWIP focal plane array (FPA). The dual-band QWIP device was developed by stacking two multi-quantum-well stacks tuned to absorb two different infrared wavelengths. The full width at half maximum (FWHM) of the mid-wave infrared (MWIR) band extends from 4.4 - 5.1 μm and FWHM of the long-wave infrared (LWIR) band extends from 7.8 - 8.8 μm. Dual-band QWIP detector arrays were hybridized with direct injection 30 μm pixel pitch megapixel dual-band simultaneously readable CMOS read out integrated circuits using the indium bump hybridization technique. The initial dual-band megapixel QWIP FPAs were cooled to 68K operating temperature. The preliminary data taken from the first megapixel QWIP FPA has shown system NE▵T of 27 and 40 mK for MWIR and LWIR bands respectively.

Paper Details

Date Published: 3 May 2010
PDF: 8 pages
Proc. SPIE 7660, Infrared Technology and Applications XXXVI, 76603L (3 May 2010); doi: 10.1117/12.851175
Show Author Affiliations
S. D. Gunapala, Jet Propulsion Lab. (United States)
S. V. Bandara, U.S. Army Night Vision & Electronic Sensors Directorate (United States)
J. K. Liu, Jet Propulsion Lab. (United States)
J. M. Mumolo, Jet Propulsion Lab. (United States)
D. Z. Ting, Jet Propulsion Lab. (United States)
C. J. Hill, Jet Propulsion Lab. (United States)
J. Nguyen, Jet Propulsion Lab. (United States)
S. B. Rafol, Jet Propulsion Lab. (United States)

Published in SPIE Proceedings Vol. 7660:
Infrared Technology and Applications XXXVI
Bjørn F. Andresen; Gabor F. Fulop; Paul R. Norton, Editor(s)

© SPIE. Terms of Use
Back to Top
Sign in to read the full article
Create a free SPIE account to get access to
premium articles and original research
Forgot your username?