A primary study was carried out and the results revealed that phenylurea had fairly strong nonlinearity, its powder second harmonic generation efficiency was 11 times larger than that of urea.
苯基脲具有很强的二阶非线性光学效应，其粉末二次谐波产生效率为尿素的11倍；
Theoretical analyses are presented on the critically phase-matched second-harmonic generation (SHG) in a biaxial crystal with the focused fundamental Gaussian beams.
本文对在临界相位匹配条件下使用聚焦高斯光束在双轴晶体中产生二次谐波进行了理论分析。
Using the macroscopic nonlinear polarization model, we discussed in detail the dynamic evolution behaviors of opt ioal field in coherent driving intraoavity second-harmonic generation (ISHG).
本文利用宏观非线性极化模型，分析了相干驱动内腔二次谐波过程中光场的动力学演化行为。
The second-harmonic generation frequency-resolved optical gating (SHG-FROG) analyzer can be used to exactly measure the pulses characteristics.
二次谐波频率分辨光学门（SHG-FROG）是能够准确测量短脉冲多项特性参量的新技术。
In Cerenkov second harmonic generation (CSHG) scheme, the phase matching condition is satisfied automatically, but the conversion efficiency is low.
切伦科夫方案中，相位匹配条件可以自动满足，但是倍频效率较低。
By using coupled-mode equation, the formula for conversion efficiency of Cerenkov second harmonic generation (CSHG) is deduced in this paper.
从耦合模方程出发，推导了切伦科夫倍频转换效率公式，并得出该效率主要是由交叠积分决定的结论；
This thesis mainly shows the research of extraordinary optical transmission and second-harmonic generation from sub-wavelength structured metallic film.
本论文主要研究亚波长周期结构金属薄膜中的超传输现象和二阶非线性效应。
The optimized KTP was used for second harmonic generation(SHG) in CW laser.
本文利用改性KTP晶体，进行了纯连续激光倍频实验。
The optimized KTP was used for second harmonic generation(SHG) in CW laser.
本文利用改性KTP晶体，进行了纯连续激光倍频实验。
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