zhangyifan 发表于 2023-11-17 09:36:03

高衍射效率的偏振无关透射光栅的分析与设计


光栅,特别是具有与波长相当的特征尺寸的光栅,具有偏振相关的光学特性。 这使得设计的具有高衍射效率的光栅难以用于任意偏振。 根据文献中报道的概念,我们展示了如何严格分析光栅的偏振相关特性,以及如何使用参数优化来设计具有高衍射效率的偏振无关光栅。
https://img.jishulink.com/upload/202311/a0410b0ee00144e7b02af15c892ef360.png


设计任务
https://img.jishulink.com/upload/202311/bc276ee75c7f4b169034cb23c5cdd248.png



光栅特性与参数的严格分析
不同光栅周期的衍射效率
https://img.jishulink.com/upload/202311/63378b59aa8147eb8f9c8e64f91e2207.png


考虑光栅周期的选择
https://img.jishulink.com/upload/202311/3dfd0492318741548fc926746590f137.png

偏振相关衍射特性https://img.jishulink.com/upload/202311/354a3ba7d95644c1aae9ad49837dabbf.png


偏振相关衍射特性https://img.jishulink.com/upload/202311/469ba7f1da90494cb9b3184ca4a0e2ae.png


偏振相关衍射特性
https://img.jishulink.com/upload/202311/b897d008d722453fb973c95973074df6.png


基于参数优化的光栅设计

具有固定周期的二维参数优化
https://img.jishulink.com/upload/202311/63ee252f6e354d08b0c322ed6cfdca34.png
二维参数优化 - 设计#1
https://img.jishulink.com/upload/202311/5db74e57ea0d440b844e3750ab7fc686.png

二维参数优化 - 设计#2
https://img.jishulink.com/upload/202311/4c475f5175b04be1a3f668ea33151211.png

制造公差分析 - 设计#2
https://img.jishulink.com/upload/202311/fe968efc429547899f432fd1d807ec21.png

不同光栅周期的三维参数优化
https://img.jishulink.com/upload/202311/1c8e324d50cc47b9a5f9f13ce206f702.png

制造公差分析
https://img.jishulink.com/upload/202311/3d3b8e70d05d4d238dc5c6e47ac9fcd6.png


走进VirtualLab Fusion
https://img.jishulink.com/upload/202311/fc90f1eb60444c2f80231fbf4855ee95.png

VirtualLab Fusion 工作流程
https://img.jishulink.com/upload/202311/f4e21c8eab004cf19a98643bdfa13fdd.png


VirtualLab Fusion技术https://img.jishulink.com/upload/202311/8f623566302a48a8af86fc7ced870ad0.png

文件信息
https://img.jishulink.com/upload/202311/bbfc6a874bbc43d989681a0af75172e5.png
https://img.jishulink.com/upload/202311/176b7a8a76764a2ba69fb0b01371cd02.jpg

进一步阅读
-   超稀疏介质纳米线栅偏振器-   严格分析纳米柱超表面构件-   倾斜光栅的参数优化和公差分析

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