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Proceedings Paper

Ultrasonic detection of 10.6-um laser in bulk germanium
Author(s): Xuecai Yu; Dayong Zhu; Yaxiong Lu
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Paper Abstract

The experiment found that 10.6 micrometers wavelength laser incident on a bulk germanium affects conductivity of germanium. The change of conductivity is ascribed to a ultrasonic field excited by change of laser power, which scatters carriers in semiconductor and results in a change of conductivity. Relative change of conductivity (Delta) (sigma) /(sigma) approximately equals 5 X 10-4 is observed when laser power changes about 1 Watt. Application in mid-infrared laser detection is proposed and discussed.

Paper Details

Date Published: 15 October 1993
PDF: 4 pages
Proc. SPIE 2022, Photodetectors and Power Meters, (15 October 1993); doi: 10.1117/12.158586
Show Author Affiliations
Xuecai Yu, Univ. of Electronic Science & Technology of China (China)
Dayong Zhu, Univ. of Electronic Science & Technology of China (China)
Yaxiong Lu, Univ. of Electronic Science & Technology of China (China)

Published in SPIE Proceedings Vol. 2022:
Photodetectors and Power Meters
Kenneth J. Kaufmann, Editor(s)

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