太赫兹波束准直光学系统设计  

Design of Collimation Optical System for Terahertz Beam

作　　者：陆洪武 

机构地区：[1]海军装备部舰船技术保障部,北京100841

出　　处：《光学与光电技术》2015年第6期77-81,共5页Optics & Optoelectronic Technology

基　　金：国家国际科技合作专项(2014DFA11190)资助项目

摘　　要：基于等光程原理计算得到了太赫兹波准直透镜曲面轮廓的解析表达式,采用全波电磁波仿真软件Feko对其准直效果进行了仿真验证。实验结果表明,双曲面型高密度聚乙烯透镜能够对太赫兹波束进行比较理想的准直效果。所设计的太赫兹准直透镜可以广泛应用于太赫兹波光学系统中。In this paper,a terahertz collimator lens is designed,and the analytical expression of its curved surface profile is obtained by using the equal-optical path principle.Then,its collimating performance is verified by a full-wave electric magnetic simulation software named as Feko.The simulation result shows that double-curve lens made of HDPE material has an ideal collimating effect for terahertz waves.The collimator lens can be widely used in terahertz optical systems.

关 键 词：太赫兹波束 高斯光束 全波电磁仿真 圆锥喇叭天线 

分 类 号：O436[机械工程—光学工程]