Abstract
We have measured the optical and transport properties of In 0.2Ga0.8As/GaAs quantum well infrared photodetectors based on bound-to-bound, bound-to-quasibound, and bound-to-continuum intersubband transitions. Excellent hot electron transport and high detectivity D*=1.8×1010 cmHz/W (at λp=16.7 μm) were achieved at temperature T=40 K.
Original language | English |
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Pages (from-to) | 3431-3433 |
Number of pages | 3 |
Journal | Applied Physics Letters |
Volume | 64 |
Issue number | 25 |
DOIs | |
State | Published - 1 Dec 1994 |
Externally published | Yes |
ASJC Scopus subject areas
- Physics and Astronomy (miscellaneous)