Laser applications and other topics in quantum electronics

Subnanosecond optoacoustic response of germanium in a dc electric field

N. V. Chigarev^a, D. Yu. Parashchuk<sup>b

a</sup> International Laser Center of Moscow State University
^b Lomonosov Moscow State University, Faculty of Physics

Abstract: The optoacoustic response of a thin plate of crystalline germanium is studied with a time resolution of ~100 ns. A ~200-ns time shift of the acoustic video pulse is detected in a ~100-V cm^-1 dc electric field. The mechanisms of the observed effect are discussed.

PACS: 78.20.Hp, 43.35.Sx

Received: 14.06.2001

 English version: Quantum Electronics, 2002, 32:1, 76–78

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