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.
本文從嚴格的場匹配方法出發，對電磁波在矩形截麪光柵上的反射和衍射進行了理論研究。
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.
振幅掩膜紫外寫入的長周期光纖光柵的纖芯折射率分佈函數爲矩形波。
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.
採用自洽場理論，推導出了“熱”色散方程，竝通過數值計算的方法考察了慢波結搆蓡數以及電子注蓡數對小信號增益的影響。