the principles of laser frequency transformation and the theory of phase matching in nonlinear optic crystals are also discussed. based on this theory, angle of phase match is calculated.
in the paper, the authors introduce calculate phase match and design ways of receiver system in radar.
介绍雷达接收系统相位配平的计算及在雷达上的设计。
change original refrigeration equipment make it with lpg phase match , while regarding lpg as the refrigerant, the performance of refrigeration circulation should be superior to r22.
若改变原制冷设备使之与液化石油气相匹配,则以液化石油气为制冷剂时,制冷循环的性能要优于r22。
the next, the influence of phase match between input signal and line-array fiber-optic image bundles on the contrast transfer function was analysed digitally.
其次,采用数值计算的方式,分析了输入方波信号与光纤束位相匹配对对比度调制传递函数的影响。
this paper contains several parts below:1. some phase match schemes for broadband laser frequency tripling, and get the reason for using the orthogonal crystals cascade scheme through comparison.
介绍了几种宽带三倍频技术方案,并对这些方案进行了对比分析,分析了现阶段采用晶体级联方案的原因。
as for shg, we show that the efficiency of shg in pbg can be greatly enhanced if the phase match condition is met.