太赫兹辐射
双折射
材料科学
管(容器)
波导管
简单(哲学)
光学
聚合物
光电子学
物理
复合材料
认识论
哲学
作者
Jingli Wang,Jianquan Yao,Heming Chen,Zhongyang Li
标识
DOI:10.1088/0256-307x/28/1/014207
摘要
We propose a simple birefringent terahertz (THz) waveguide which is a polymer elliptical tube with a cross section of elliptical ring structure. It can be achieved by stretching a normal circular-tube in one direction. Simulations based on the full-vector finite element method (FEM) show that this kind of waveguides exhibits high birefringence on a level of 10−2 over a wide THz frequency range. Moreover, as a majority of modal power is trapped in the air core inside the polymer elliptical tube, the THz waveguide guiding loss caused by material absorption can be reduced effectively.
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