Laser difference frequency generation 激光差频输出
nonlinear difference frequency generation 非线性光学差频
nonlinear optical difference frequency generation 非线性光学差频
cascaded sum-and difference-frequency generation 级联和频与差频二阶非线性效应
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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。
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