Symmetries are existed in oxy and oyz planes for horizontally and vertically polarized waves , i . e . one ' s h - polarized case is the same as the other v - polarized one . while the expectations of the rotatory axes oriented in oxz plane are complement , one ' s h - polarized case is the same as the other v - polarized one 平面oxy和平面oyz對于兩種偏振極化入射波時存在著對稱性,一者的水平極化與另一者的垂直極化情況相同;而oxz平面內(nèi)旋轉(zhuǎn)軸的平均取向的期望互余時,一者的水平極化與另一者的垂直極化時的情況相同。