真实国产乱子伦高清对白直播_精品成人在线观看_91精品国产电影_欧美日韩综合在线播放_午夜爽爽爽男女免费观看_av偷窥老女人熟女偷拍第一区_日本久久精品综合_国产`盗摄免费视频_野花免费观看高清在线下载_yy6080新视觉伦午夜无码

波片

Waveplates are made from materials which exhibit birefringence. The velocities of the extraordinary and ordinary rays go though the birefringent materials vary inversely with their refractive indices.
當(dāng)前位置: 波片

Waveplates are made from materials which exhibit birefringence. The velocities of the extraordinary and ordinary rays go though the birefringent materials vary inversely with their refractive indices. The difference in velocities gives rise to a phase difference when the two beams recombine.