首页> 外文会议>Advanced Wavefront Control: Methods, Devices, and Applications II >Atmospheric simulation using a liquid crystal wavefront controlling device
【24h】

Atmospheric simulation using a liquid crystal wavefront controlling device

机译:使用液晶波前控制装置进行大气模拟

获取原文
获取原文并翻译 | 示例

摘要

Test and evaluation of laser warning devices is important due to the increased use of laser devices in aerial applications. This research consists of an atmospheric aberrating system to enable in-lab testing of various detectors and sensors. This system employs laser light at 632.8nm from a Helium-Neon source and a spatial light modulator (SLM) to cause phase changes using a birefringent liquid crystal material. Measuring outgoing radiation from the SLM using a CCD targetboard and Shack-Hartmann wavefront sensor reveals an acceptable resemblance of system output to expected atmospheric theory. Over three turbulence scenarios, an error analysis reveals that turbulence data matches theory. A wave optics computer simulation is created analogous to the lab-bench design. Phase data, intensity data, and a computer simulation affirm lab-bench results so that the aberrating SLM system can be operated confidently.
机译:由于在空中应用中越来越多地使用激光设备,因此激光警告设备的测试和评估非常重要。这项研究由一个大气像差系统组成,可对各种探测器和传感器进行实验室内测试。该系统使用来自氦氖光源的632.8nm的激光和空间光调制器(SLM),以使用双折射液晶材料引起相变。使用CCD目标板和Shack-Hartmann波前传感器测量SLM的出射辐射,发现系统输出与预期的大气理论相似。在三种湍流情况下,误差分析表明湍流数据与理论相符。可以创建类似于实验室工作台设计的波光学计算机仿真。相位数据,强度数据和计算机模拟确认了实验室工作台的结果,因此,可以可靠地操作畸变的SLM系统。

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