rectangular wave grating

基本解释

The electromagnetic field problem of a rectangular grating illuminated with TM wave is studied theoretically by means of rigorous field-matching and moment method.
本文从严格的场匹配方法出发，对电磁波在矩形截面光栅上的反射和衍射进行了理论研究。
The refractive index distribution function of long period fiber grating (LPG), which is ultraviolet written by amplitude mask, is a rectangular wave in the core region.
振幅掩膜紫外写入的长周期光纤光栅的纤芯折射率分布函数为矩形波。
The beam-wave interaction of an open rectangular grating waveguide SWS is analyzed. The 'hot' dispersion equation of the SWS is obtained according to the self-consistent field theory.
采用自洽场理论，推导出了“热”色散方程，并通过数值计算的方法考察了慢波结构参数以及电子注参数对小信号增益的影响。