Translator Disclaimer
Paper
2 February 2004 Large format long-wavelength infrared narrow-band, multi-band, and broad-band QWIP focal plane arrays
Author Affiliations +
Abstract
A 640x512 pixel, long-wavelength cutoff, narrow-band (Δλ/λ~10%) quantum well infrared photodetector (QWIP) focal plane array (FPA), a four-band QWIP FPA in 4-16 μm spectral region, and a broad-band (Δλ/λ~42%) QWIP FPA having 15.4 μm cutoff have been demonstrated. In this paper we discuss the detector designs, dark currents, quantum efficiencies, responsivities, detectivities, noise equivalent differential temperatures (NEDTs), the effect of FPA nonuniformity on performance, and the operabilities of these QWIP FPAs. In addition, we discuss the development of a very sensitive (NEDT~10.6 mK) 640x512 pixel thermal imaging camera having 9 μm cutoff.
© (2004) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Sarath D. Gunapala, Sumith V. Bandara, John K. Liu, Sir B. Rafol, and Jason M. Mumolo "Large format long-wavelength infrared narrow-band, multi-band, and broad-band QWIP focal plane arrays", Proc. SPIE 5234, Sensors, Systems, and Next-Generation Satellites VII, (2 February 2004); https://doi.org/10.1117/12.504900
PROCEEDINGS
15 PAGES


SHARE
Advertisement
Advertisement
RELATED CONTENT

MWIR and LWIR megapixel QWIP focal plane arrays
Proceedings of SPIE (October 21 2004)
10 to 16 um broadband 640 x 512 GaAs...
Proceedings of SPIE (October 10 2001)
Large-format multiband QWIP focal plane arrays
Proceedings of SPIE (November 10 2003)
9 um cutoff 640x512 pixel GaAs AlxGa1 xAs quantum well...
Proceedings of SPIE (August 05 2002)

Back to Top