NASA Logo

NTRS

NTRS - NASA Technical Reports Server

Back to Results
Charge distribution and response time for a modulation-doped extrinsic infrared detectorThe electric charge distribution and response time of a modulation-doped extrinsic infrared detector are determined. First, it is demonstrated theoretically that the photoconductive layer is effectively depleted of ionized majority-impurity charges so that scattering is small and mobility is high for photogenerated carriers. Then, using parameters appropriate to an actual detector, the predicted response time is 10 to the -8th to about 10 to the -9th s, which is much faster than comparable conventional detectors. Thus, the modulation-doped detector design would be valuable for heterodyne applications.
Document ID
19870041862
Document Type
Reprint (Version printed in journal)
External Source(s)
Authors
Hadek, Victor (California Institute of Technology Jet Propulsion Laboratory, Pasadena, United States)
Date Acquired
August 13, 2013
Publication Date
January 15, 1987
Publication Information
Publication: Journal of Applied Physics
Volume: 61
ISSN: 0021-8979
Subject Category
INSTRUMENTATION AND PHOTOGRAPHY
Distribution Limits
Public
Copyright
Other