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noncritically phase matched 非临界相位匹配
Guided wave second-harmonic (SH) generation can not be phase matched automatically by Cerenkov radiation scheme. 用波导产生倍频波时,如果倍频波进入辐射模区,仍然有相匹配问题。
The generation and detection of THz wave, particularly by using the photoconductive antenna, optical rectification and non-collinear phase matched THz OPO, are introduced. 摘要详细介绍了利用光导天线、光整流和光学参量振荡器产生太赫兹波，以及利用电光效应和光导偶极天线探测太赫兹波的方法。
The generation and detection of THz wave,particularly by using the photoconductive antenna,optical rectification and non-collinear phase matched THz OPO,are introduced. 详细介绍了利用光导天线、光整流和光学参量振荡器产生太赫兹波,以及利用电光效应和光导偶极天线探测太赫兹波的方法。
Press ENT button. Phase matching is completed and "PH=" disappears. 按ENT按钮，相位匹配被完成,“PH=”消失。
Third, we also study the influence of the photoisomerization on the THG in dye doped polymer films.The phase matched THG measurements are also preformed in the nematic LC and AQ doped LC. 第三，研究了含光致异构有机分子的高分子聚合物薄膜（聚碳酸酯）在光激励下光学非线性改变的动力学过程。
noncritical phase matching 非临界相位匹配
The phase matching angle is calculated under different noncollinear angles. 计算了在不同非共线夹角下的相位匹配角度。
It can break the balance of the output power or the phase match between inverters and loads effectively to implement a fast islanding detection.There is no non detection zone with this algorithm. 该方法使逆变器输出电流的相位周期性累加式变化，同时检测频率的变化来调节相位的正反馈，有效地打破逆变器输出和负载之间的功率平衡或相位匹配，从而快速检测出孤岛状态，且不存在检测盲区。
phase matched for parametric processes 参量过程相位匹配
Phase Matching of Optical Heterodyne Measurement in Nondestructive Evaluation[J]. 引用该论文余学才;李丽国;曹飞;李绍荣.
Study of Phase Matching of Three Wave Noncollinear Interactions Optical Parametric Process[J]. 引用该论文刘红军;陈国夫;赵卫;王屹山;王涛;赵尚弘.
Mourinho said:' Last season was unbelievable. After the Champions League, Chelsea was nearly always away, especially after the group phase matches. 穆里尼奥说：‘个赛季简直不敢相信，在我们冠军联赛比赛之后，几乎都是客场联赛。我尤其在意小组赛结束之后的那次。
SRS possesses many attractive features, i.e. beam clean-up, pulse compression, no need for phase matching, and high conversion efficiency. 此外受激拉曼散射具有多种优良特性，如散射光光束质量好、脉宽窄、不需要相位匹配、并且具有高的转换效率。
By following the way of studying the nonlinear effect as a whole , the influence of the SPM and XPM to the phase matching condition of FWM is studied . 根据综合研究非线性效应的考虑，本文研究了自相位调制及交叉相位调制对四波混频相位匹配的影响，在一定的简化下得到了解析的结果。
According to Sellmeier's equations for BBO crystal,the relationship of phase matching angle of generating the sum frequency effect to wavelength is theoreti-cally calculated. 根据BBo晶体Sellmeier方程确定的折射率，计算了在钛宝石激光可调谐波段的和频相位匹配角。
When the average power of femtosecond Ti:sapphire laser is 560mW,the SHG output power is 352mW with type I phase matching BBO crystal. The SHG conversion efficiency is 63%. 采用一类相位匹配的 BBO晶体 ,当飞秒钛宝石光脉冲平均功率为 560 m W时 ,二次谐波输出功率为 352 m W,二次谐波转换效率高达 63%25 ;
The experimental result was explained theoretically with the relation between the polarization property of the fundamental laser beam and the phase matching of KTP. 最后使用基频光的偏振特性与KTP的相位匹配之间的关系对实验结果进行理论解释。
It is necessary to adjust the direction of incident light for minimum phase mismatching when the direction of phase matching deviated from crystal normal direction. 晶体倍频中当晶体表面法线与相位匹配方向不一致时,需调整入射光方向使相位失配最小。
The optic-acoustic reaction relationship is analyzed to noncollinear acousto-optic tunable filter (AOTF) under normal phase matching condition in this paper. 研究非共线性声光可调谐滤波器 (AOTF) 在一般相位匹配条件下的声光相互作用关系。