...特别是非线性光学方法，如光学二次谐波（SHG - Second Harmonic Generation）及红外和频光谱（ sfg - Sum Frequency Generation）研究平整及粗糙微粒界面的分子结构及化学动力学过程。
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sum frequency generation 和频振荡 ; 表面和频光谱分析系统 ; 和频振动光谱
sum Frequency Generation Vibrational Spectroscopy 和频振动光谱
Sum-frequency generation 振动光谱 ; 和频效应 ; 光谱
coherent sum frequency generation 相干和频振荡
intracavity sum-frequency generation 腔内和频
surface enhanced sum frequency generation 和表面增强合频
sum frequency generation ibrational spectroscopy 并通过和频振动光谱
cascaded sum-and difference-frequency generation 级联和频与差频二阶非线性效应
It mainly consists of harmonic generation, sum-frequency generation, difference-frequency generation, optical parametric oscillation and etc.
它主要由二次谐波产生、和频产生、差频产生、光参量振荡等构成。
The phase matching conditions for sum frequency generation are analyzed. The optimum phase matching angles and effective nonlinear coefficients for KTP and LBO are derived and calculated.
进行了双束激光和频相位匹配的理论分析，给出了KTP 和LBO 两种晶体在和频时的最佳相位匹配角和有效和频系数。
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