摘要
给出了一种用于调整激光高效偏光镜出射光束间距的新型棱镜,利用光斜入射通过平行均匀介质时会发生光束平移的原理,导出了缩·扩束比与棱镜参数的关系以及棱镜的设计公式．选择光以布儒斯特角入射,使得棱镜具有最佳透射比．通过改变棱镜的边长来调整出射光束的剪切差,从而达到光束的缩·扩束的目的．
This article introduced a new kind polarizer applied in the field of laser high efficiency polarizers＇ transmission light. Using the principle that when light pass through the parallel, homogenous media, it will move parallel, the relationship between the prism＇s parameters and the ratio of scaling to blooming the beam is deduced, as well as the design formula of the prism. The Brewster angle of incidence enables the prism has the best transmittance. The shear difference will be adjusted by changing the length of the prism, so that we can achieve the purpose of scaling or blooming the beam.
出处
《临沂师范学院学报》
2006年第3期41-43,共3页
Journal of Linyi Teachers' College
关键词
偏振光学
激光高效偏光镜
光束平移
剪切差
透射比
polarized optics
laser high efficiency polarizer
beam combination
shear difference
transmit tance
