• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文会议>Proceedings of the Fourteenth annual directed energy symposium (including directed energy education workshop). >Laser Propagation in Biaxial Liquid Crystal Polymers
【24h】

Laser Propagation in Biaxial Liquid Crystal Polymers

机译：双轴液晶聚合物中的激光传播

获取原文
获取原文并翻译 | 示例
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

We examine the propagation of a laser beam through a liquid crystal polymer (LCP) layer usingrnthe finite-difference time-domain (FDTD) method. Anchoring conditions on supportingrnglass plates induce an orientational structure in the LCP between the plates. The orientationrncan deflect energy away from the direction of propagation of the incident beam whenrnthe optical axis or major director of a uniaxial medium is neither parallel nor orthogonalrnto the incident beam. The maximum energy deflection occurs when the angle between thernincident beam and the major director of the orientation is 45 degrees, but for spatially uniformrnorientations, polarization orthogonal to the plane containing the major director andrnthe propagation direction is unaffected. We investigate how to overcome this by twisting thernanchoring alignment on the plates with respect to each other to generate a helical structurernin the orientation across the gap to deflect all polarizations. We also examine the differencernbetween the commonly used Leslie-Ericksen theory for the LCP, which assumes a uniaxialrnorientation, and the more general Doi-Marrucci-Greco orientation tensor model, which allowsrnfor both biaxial structures and oblate defect phases.
机译：我们使用有限差分时域（FDTD）方法检查通过液晶聚合物（LCP）层的激光束的传播。支撑玻璃板上的锚固条件会在板之间的LCP中引起取向结构。当单轴介质的光轴或主指向矢既不平行也不正交于入射光束时，取向可以使能量偏离入射光束的传播方向。当入射光束与取向的主指向矢之间的角度为45度时，会发生最大的能量偏转，但是对于空间均匀的取向，正交于包含主指向矢的平面和传播方向的偏振不受影响。我们研究了如何通过在板上相对于彼此扭转光热对准来克服这个问题，以在整个间隙的方向上产生一个螺旋结构来偏转所有极化。我们还研究了LCP常用的Leslie-Ericksen理论（假定为单轴取向）与更通用的Doi-Marrucci-Greco取向张量模型之间的差异，该模型允许双轴结构和扁圆形缺陷相同时存在。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号