HIGH-FREQUENCY MONOCHROMATIC ACOUSTIC-WAVES GENERATED BY LASER-INDUCED THERMOMODULATION

被引：30

作者：

DAMEN, EPN ^{[1
]}

ARTS, AFM ^{[1
]}

DEWIJN, HW ^{[1
]}

机构：

[1] UNIV UTRECHT,DEBYE RES INST,3508 TA UTRECHT,NETHERLANDS

来源：

PHYSICAL REVIEW LETTERS | 1995年 / 74卷 / 21期

关键词：

D O I：

10.1103/PhysRevLett.74.4249

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

Monochromatic acoustic waves are produced in a single crystal of PbMoO4 by periodic heating of a deposited Au film over an area about 40 m in diameter by two interfering single-frequency dye lasers. Detection of these waves at optical difference frequencies up to 4 GHz is accomplished by Brillouin scattering. The generated power depends on the film thickness by acoustic interference within the film. Besides weak phonon defocusing effects, the divergence of the generated acoustic wave is limited by Fraunhofer diffraction. © 1995 The American Physical Society.

引用

页码：4249 / 4252

页数：4

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