Normal incidence hole intersubband absorption long wavelength GaAs/AlxGa1−xAs quantum well infrared photodetectors

作者: B. F. Levine , S. D. Gunapala , J. M. Kuo , S. S. Pei , S. Hui

DOI: 10.1063/1.106170

关键词:

摘要: The first long wavelength quantum well infrared photodetector based on valence band intersubband absorption holes is demonstrated. A normal incidence efficiency of η=28% and detectivity D*λ=3.1×1010 cm √Hz/W at T=77 K, for a cutoff λc=7.9 μm, have been achieved.

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