DocumentCode :
1376282
Title :
High Operability 1024 ,\\times, 1024 Long Wavelength Type-II Superlattice Focal Plane Array
Author :
Haddadi, Abbas ; Ramezani-Darvish, Shaban ; Chen, Guanxi ; Hoang, Anh Minh ; Nguyen, Binh-Minh ; Razeghi, Manijeh
Author_Institution :
Center for Quantum Devices, Northwestern Univ., Evanston, IL, USA
Volume :
48
Issue :
2
fYear :
2012
Firstpage :
221
Lastpage :
228
Abstract :
Electrical and radiometric characterization results of a high-operability1024 × 1024 long wavelength infrared type-II superlattice focal plane array are described. It demonstrates excellent quantum efficiency operability of 95.8% and 97.4% at operating temperatures of 81 K and 68 K, respectively. The external quantum efficiency is 81% without any antireflective coating. The dynamic range is 37 dB at 81 K and increases to 39 dB at 68 K operating temperature. The focal plane array has noise equivalent temperature difference as low as 27 mK and 19 mK at operating temperatures of 81 K and 68 K, respectively, using f/2 optics and an integration time of 0.13 ms.
Keywords :
focal planes; infrared detectors; radiometry; superlattices; external quantum efficiency; f/2 optics; infrared type-II superlattice focal plane array; noise equivalent temperature difference; quantum efficiency operability; radiometric characterization; temperature 68 K; temperature 81 K; Arrays; Dark current; Noise; Photoconductivity; Photodiodes; Superlattices; Temperature measurement; Infrared imaging; large format focal plane array; long wavelength infrared photodetector; type-II superlattice;
fLanguage :
English
Journal_Title :
Quantum Electronics, IEEE Journal of
Publisher :
ieee
ISSN :
0018-9197
Type :
jour
DOI :
10.1109/JQE.2011.2175903
Filename :
6081892
Link To Document :
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