second-harmonic

基本解释

And the second-harmonic intensity auto-correlation method is widely used to measure the ultrashort pulse wave.
二次谐波强度自相关法是被广泛使用的超短光脉冲波形测量的方法。
In this article resonant second-harmonic generation accompanying SH type plate waves in an isotropic plate has been studied theoretically.
从理论上研究了固体板内SH型板波的“共振”二次谐波发生。
Light source modulation harmonic measurement is presented in this paper. The ratio of the fundamental and second-harmonic signal presented can be used for eliminating optical interference.
利用光源调制实现气体浓度的谐波检测，用二次谐波与一次谐波的比值来消除光路干扰。