Laser picosecond acoustics in a two-layer structure with oblique probe light incidence
Laser picosecond acoustics in a two-layer structure with oblique probe light incidence
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DOI：
10.1016/j.ultras.2004.01.052
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发表时间：
2004-04-01
期刊：
影响因子：
4.2
通讯作者：
Wright, OB
中科院分区：
文献类型：
--
作者：
Matsuda, O;Wright, OB
本文概述了一种理论，用于分析探测光斜入射时激光皮秒声学实验。反射光的反射率和相位变化的理论计算，考虑到多次光学反射的影响。样品由基底上的单个部分透明层组成，两者都具有任意的光学常数。我们讨论的条件下，其中一个可以区分所产生的光弹效应和从位移的样品界面引起的声应变的探测光束的光学调制的组件之间。(C)2004 Elsevier B.V.保留所有权利。
A theory for the analysis of experiments involving laser picosecond acoustics with obliquely incident probe light in a two-layer structure is outlined. The reflectance and phase changes of the reflected light are calculated with a theory that takes into account the effects of multiple optical reflections. The sample consists of a single partially transparent layer on a substrate, both with arbitrary optical constants. We discuss the conditions in which one may discriminate between components of the optical modulation of a probe beam arising from the photoelastic effect and from the displacement of the sample interfaces induced by the acoustic strain. (C) 2004 Elsevier B.V. All rights reserved.