DocumentCode
1077305
Title
Frequency and pulse response of a novel high-speed interdigital surface photoconductor (IDPC)
Author
Slayman, C.W. ; Figueroa, L.
Author_Institution
Hughes Aircraft Company, Malibu, California
Volume
2
Issue
5
fYear
1981
fDate
5/1/1981 12:00:00 AM
Firstpage
112
Lastpage
114
Abstract
A novel type of high speed photodetector has been fabricated by placing an interdigital metal electrode pattern directly on the surface of a semi-insulating Cr-Doped GaAs substrate. The photo-conductor was found to have an analog bandwidth in excess of 4 GHz and a pulse risetime of less than 50 ps. Large photoconductive gain was observed under CW illumination. Photoconductive gain was less than unity under RF modulated illumination. The sensitivity, pulse and frequency response compare well with the best commercial detectors.
Keywords
Detectors; Electrodes; Frequency response; Gallium arsenide; Lighting; Masers; Optical pulses; Photoconductivity; Photodetectors; Radio frequency;
fLanguage
English
Journal_Title
Electron Device Letters, IEEE
Publisher
ieee
ISSN
0741-3106
Type
jour
DOI
10.1109/EDL.1981.25362
Filename
1481846
Link To Document