Reflection and transmission of light in multilayers perturbed by picosecond strain pulse propagation
Reflection and transmission of light in multilayers perturbed by picosecond strain pulse propagation
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DOI：
10.1364/josab.19.003028
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发表时间：
2002-12-01
影响因子：
1.9
通讯作者：
Wright, OB
中科院分区：
文献类型：
--
作者：
Matsuda, O;Wright, OB
我们推导出解析公式的调制的反射率和透射率的光垂直入射到多层薄膜结构的折射率由超短光脉冲扰动。的公式，以紧凑的形式表示，应证明是有用的分析范围广泛的超短时间尺度的实验多层膜以及较长的时间尺度的光声和光热实验的基础上，光学探测。我们证明了我们的方法通过分析的调制反射率的变化的SiO2/Cr结构，其中皮秒声脉冲已被光激发。(C)2002年美国光学学会。
We derive analytical formulas for the modulation of the reflectance and transmittance of light normally incident on a multilayer thin-film structure whose refractive indices are perturbed by an ultrashort optical pulse. The formulas, expressed in compact form, should prove useful for analysis of a wide range of ultrashort time-scale experiments on multilayers as well as longer time-scale photoacoustic and photothermal experiments based on optical probing. We demonstrate our method by the analysis of the modulated reflectance variation of a SiO2/Cr structure in which picosecond acoustic pulses have been optically excited. (C) 2002 Optical Society of America.