The calculations show that a ultrashort pulse laser and the medium with higher ionization potential is necessary for generating higher order phase matched harmonic.
分析表明要想使高次谐波获得相位匹配，需要超短脉宽的驱动脉冲以及电离能大的气体工作介质。
In chapter four, the optimization of quasi-phase matched CSHG is demonstrated. Parametric amplification in the Cerenkov-idler configuration is modeled and analyzed theoretically.
第四章论述了准相位匹配切伦科夫倍频的优化，理论分析和模拟了准相位匹配切伦科夫型参量放大。
A new method for Direction of Arriving (DOA) Estimation-Phase Matched Theory (PMT) is introduced, which computation complexity is simple and performance is unaffected by unknown correlated noise.
文中介绍了一种新的信号方位估计原理——相位匹配原理(PMT)，该原理计算简单、且不受噪声相关特性的影响。
Phase-matched filter is applied to extract phase of fundamental surface wave, and then time-variable filter is used to correct amplitude spectrum in order to isolate fundamental mode signs.
使用相匹配滤波技术提取基阶面波振型的相位，然后再利用时变滤波进行振幅谱校正，以此分离出基阶振型面波信号。
The research object is to obtain the noncritical phase-matched property and application of BIBO crystal.
为了研究BIBO晶体的非临界相位匹配的特点及应用。
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。
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。
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