1. 摘要
偏振相关衍射光栅对一些光学测量系统很有帮助。根据J. Wuster等人的工作,我们遵循形式双折射原理构造了一个亚波长结构的光栅。该光栅具有大于波长的超周期,且具有明显偏振相关性: TE偏振照明时,零阶透射效率高;在TM情况下,±1阶有较高的效率。
![](http://tiebapic.baidu.com/forum/w%3D580/sign=23c7ef5a49b30f24359aec0bf895d192/ceab6709c93d70cf6389ee36bedcd100baa12b2b.jpg?tbpicau=2024-07-14-05_03aba4b8f3c252e1f7fbc3a41a9a8750)
![](http://tiebapic.baidu.com/forum/w%3D580/sign=c71f7eb8492442a7ae0efdade143ad95/d69cc93d70cf3bc7c67389d79700baa1cd112a2b.jpg?tbpicau=2024-07-14-05_54872f32098b7da8aba7a3cddad2a18c)
![](http://tiebapic.baidu.com/forum/w%3D580/sign=96dba048eb4bd11304cdb73a6aafa488/4949d100baa1cd112cc5361bff12c8fcc3ce2d2b.jpg?tbpicau=2024-07-14-05_6d4c72777c9d824d2cc7ab8130535a3f)
![](http://tiebapic.baidu.com/forum/w%3D580/sign=546a33ac9f33c895a67e9873e1137397/c15a3bc79f3df8dc8a4ecbaa8b11728b4710282b.jpg?tbpicau=2024-07-14-05_c7f04ca12aa2b350570e79fd5524b971)
![](http://tiebapic.baidu.com/forum/w%3D580/sign=c38d083a4c55b3199cf9827d73a98286/3601a4c27d1ed21b62ba6adeeb6eddc451da3f2b.jpg?tbpicau=2024-07-14-05_9c82125842bf4ba50771d360c9880d09)
偏振相关衍射光栅对一些光学测量系统很有帮助。根据J. Wuster等人的工作,我们遵循形式双折射原理构造了一个亚波长结构的光栅。该光栅具有大于波长的超周期,且具有明显偏振相关性: TE偏振照明时,零阶透射效率高;在TM情况下,±1阶有较高的效率。
![](http://tiebapic.baidu.com/forum/w%3D580/sign=23c7ef5a49b30f24359aec0bf895d192/ceab6709c93d70cf6389ee36bedcd100baa12b2b.jpg?tbpicau=2024-07-14-05_03aba4b8f3c252e1f7fbc3a41a9a8750)
![](http://tiebapic.baidu.com/forum/w%3D580/sign=c71f7eb8492442a7ae0efdade143ad95/d69cc93d70cf3bc7c67389d79700baa1cd112a2b.jpg?tbpicau=2024-07-14-05_54872f32098b7da8aba7a3cddad2a18c)
![](http://tiebapic.baidu.com/forum/w%3D580/sign=96dba048eb4bd11304cdb73a6aafa488/4949d100baa1cd112cc5361bff12c8fcc3ce2d2b.jpg?tbpicau=2024-07-14-05_6d4c72777c9d824d2cc7ab8130535a3f)
![](http://tiebapic.baidu.com/forum/w%3D580/sign=546a33ac9f33c895a67e9873e1137397/c15a3bc79f3df8dc8a4ecbaa8b11728b4710282b.jpg?tbpicau=2024-07-14-05_c7f04ca12aa2b350570e79fd5524b971)
![](http://tiebapic.baidu.com/forum/w%3D580/sign=c38d083a4c55b3199cf9827d73a98286/3601a4c27d1ed21b62ba6adeeb6eddc451da3f2b.jpg?tbpicau=2024-07-14-05_9c82125842bf4ba50771d360c9880d09)