Normal incidence hole intersubband absorption long wavelength GaAs/AlxGa1−xAs quantum well infrared photodetectors
Levine, B. F. ; Gunapala, S. D. ; Kuo, J. M. ; Pei, S. S. ; Hui, S.
Woodbury, NY : American Institute of Physics (AIP)
Published 1991
Woodbury, NY : American Institute of Physics (AIP)
Published 1991
| ISSN: |
1077-3118
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|---|---|
| Source: |
AIP Digital Archive
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| Topics: |
Physics
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| Notes: |
The first long wavelength quantum well infrared photodetector based on valence band intersubband absorption holes is demonstrated. A normal incidence quantum efficiency of η=28% and detectivity of D*λ=3.1×1010 cm (square root of)Hz/W at T=77 K, for a cutoff wavelength λc=7.9 μm, have been achieved.
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| Type of Medium: |
Electronic Resource
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| URL: |