DETECTION OF ULTRASONIC MOTION OF A SCATTERING SURFACE BY 2-WAVE MIXING IN A PHOTOREFRACTIVE GAAS CRYSTAL

被引：126

作者：

BLOUIN, A

MONCHALIN, JP

机构：

[1] Industrial Materials Institute, National Research Council of Canada, Boucherville, Qué. J4B 6Y4

来源：

APPLIED PHYSICS LETTERS | 1994年 / 65卷 / 08期

关键词：

D O I：

10.1063/1.112153

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

The performance of an interferometric system based on two-wave mixing at 1.06 mum in undoped GaAs crystal, for the remote detection of transient motion of a scattering surface, is described. In this system, the wave scattered by the surface is mixed inside the photorefractive crystal with a pump wave directly derived from the laser to provide the reference wave of the interferometer. The system shows several features appropriate to industrial applications, although its sensitivity is less than passive interferometric systems of the confocal Fabry-Perot type presently in use, except in the low frequency range (below 1 MHz).

引用

页码：932 / 934

页数：3

共 9 条

[1] CROSS-POLARIZATION PHOTOREFRACTIVE 2-BEAM COUPLING IN GALLIUM-ARSENIDE [J].