sum frequency 和频 ; 总频率
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 振动光谱 ; 和频效应 ; 光谱
sum Frequency Generation Vibrational Spectroscopy 和频振动光谱
sum-frequency theory 和频理论
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。
参考来源 - 二阶非线性光学频率转换两模量子场耦合系统的时间演化与量子起伏·2,447,543篇论文数据，部分数据来源于NoteExpress
As an attosecond ultrafast modulation process, SFPB can be extended intrinsically to any sum-frequency of energy-levels.
SFPB作为一种阿秒超快调制过程，从理论上说它可以扩展到任何和频能级系统。
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。
Different ways to generate yellow laser were discussed, especially two nonlinear-optical methods of sum-frequency mixing and stimulated Raman scattering (SRS).
对黄光激光的产生方式进行了讨论，重点介绍两种获得黄光激光的非线性光学方法：和频和受激拉曼散射效应。
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