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基于随机位相分布的液晶退偏器件设计与分析

张雨琪 汪玉琴 陈丹 张蓉竹

张雨琪, 汪玉琴, 陈丹, 等. 基于随机位相分布的液晶退偏器件设计与分析[J]. 强激光与粒子束, 2023, 35: 111003. doi: 10.11884/HPLPB202335.230180
引用本文: 张雨琪, 汪玉琴, 陈丹, 等. 基于随机位相分布的液晶退偏器件设计与分析[J]. 强激光与粒子束, 2023, 35: 111003. doi: 10.11884/HPLPB202335.230180
Zhang Yuqi, Wang Yuqin, Chen Dan, et al. Design and analysis of the liquid crystal depolarizer based on random phase distribution[J]. High Power Laser and Particle Beams, 2023, 35: 111003. doi: 10.11884/HPLPB202335.230180
Citation: Zhang Yuqi, Wang Yuqin, Chen Dan, et al. Design and analysis of the liquid crystal depolarizer based on random phase distribution[J]. High Power Laser and Particle Beams, 2023, 35: 111003. doi: 10.11884/HPLPB202335.230180

基于随机位相分布的液晶退偏器件设计与分析

doi: 10.11884/HPLPB202335.230180
基金项目: 四川大学“国家级大学生创新创业训练计划”基金项目
详细信息
    作者简介:

    张雨琪,yuqizhang@stu.scu.edu.cn

    通讯作者:

    张蓉竹, zhang_rz@scu.edu.cn

  • 中图分类号: O436

Design and analysis of the liquid crystal depolarizer based on random phase distribution

  • 摘要: 为了实现对不同偏振态入射激光的退偏控制,设计了一种具有随机位相分布结构的液晶退偏器。针对胆甾相液晶器件,利用时域有限差分法,对激光通过胆甾相液晶器件的传输问题建立了模型,并通过实验验证了理论模型,分析了激光通过液晶阵列单元后的偏振态变化及偏振态分布特性。仿真分析结果表明,在合适的液晶材料条件和微刻蚀坑的最大厚度条件下,胆甾相液晶器件对于不同偏振角的入射线偏振光均可以实现较好的退偏效果,且适用的谱宽范围较大。
  • 图  1  液晶退偏器件基本结构

    Figure  1.  Principle diagram of the liquid crystal depolarizer

    图  2  实验验证

    Figure  2.  Experimental results

    图  3  不同波长的DOP结果

    Figure  3.  DOP results at different wavelength

    图  4  出射光偏振态的分布

    Figure  4.  Polarization distribution of emergent light passing through the depolarizer

    图  5  不同波长的DOP结果

    Figure  5.  DOP results at different wavelength

    图  6  优化设计结果

    Figure  6.  Optimization result

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出版历程
  • 收稿日期:  2023-06-15
  • 修回日期:  2023-10-14
  • 录用日期:  2023-10-16
  • 网络出版日期:  2023-10-18
  • 刊出日期:  2023-11-11

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