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15-μm 128×128 GaAs/AlxGa1-xAs quantum well infrared photodetector focal plane array camera

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9 Author(s)
Gunapala, S.D. ; Jet Propulsion Lab., California Inst. of Technol., Pasadena, CA, USA ; Park, J.S. ; Sarusi, G. ; True-Lon Lin
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In this paper, we discuss the development of very sensitive, very long wavelength infrared GaAs/AlxGa1-xAs quantum well infrared photodetectors (QWIPs) based on bound-to-quasi-bound intersubband transition, fabrication of random reflectors for efficient light coupling, and the demonstration of a 15-μm cutoff 128×128 focal plane array imaging camera. Excellent imagery, with a noise equivalent differential temperature (NEΔT) of 30 mK has been achieved

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Electron Devices, IEEE Transactions on  (Volume:44 ,  Issue: 1 )