LWIR 128x128 GaAs/AlGaAs multiple quantum well hybrid focal plane array

The authors describe the fabrication and performance of a new type of hybrid focal plane array (FPA). The hybrid consists of a 128x128 GaAs/AlGaAs superlattice multiple-quantum-well detector array with peak response at 7.7 mum mated to a high-performance CMOS readout with direct injection input. The...

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Published inIEEE transactions on electron devices Vol. 38; no. 5; pp. 1124 - 1130
Main Authors Kozlowski, L J, Williams, G M, Sullivan, G J, Farley, C W, Anderson, R J, Chen, J, Cheung, D T, Tennant, W E, DeWames, R E
Format Journal Article
LanguageEnglish
Published 01.05.1991
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Summary:The authors describe the fabrication and performance of a new type of hybrid focal plane array (FPA). The hybrid consists of a 128x128 GaAs/AlGaAs superlattice multiple-quantum-well detector array with peak response at 7.7 mum mated to a high-performance CMOS readout with direct injection input. The quantum-well infrared photodetector (QWIP) array was fabricated by molecular-beam epitaxy (MBE). Optical gratings were excluded to facilitate evaluation of the basic detector-technology. The mean < e1 > D < /e1 > * at 78 K was 5.76x10(9) cm-{square root}Hz/W. Total FPA 1/ < e1 > f < /e1 > noise was negligible, as corroborated by imagery having minimum resolvable temperature (MRT) of 30 mK at 0.07 cycles/mrad. No gain nonuniformity correction was used in the imaging demonstration
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ISSN:0018-9383
DOI:10.1109/16.78388