Title

Laser-Induced Acoustic Phonon Gratings In Semiconductor Thin-Films

Title - Alternative

J. Appl. Phys.

Keywords

Ultrasonic-Waves; Excited-State; Oscillations; Diffraction; Generation; Solids; Gaas; Physics, Applied

Abstract

Laser induced ultrasonic standing waves are observed in molecular beam deposited ZnSe thin films using the transient grating technique. This observation is attributed to a very short trapping time for single photon absorption in the band tail. The period of the standing wave is used to determine the acoustic phonon velocity in the ZnSe thin film which indicates that it is longitudinal acoustic phonons which are excited.

Publication Title

Journal of Applied Physics

Volume

73

Issue/Number

10

Publication Date

1-1-1993

Document Type

Article

Language

English

First Page

4746

Last Page

4751

WOS Identifier

WOS:A1993LD85100003

ISSN

0021-8979

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