光通信技术2017，Vol.41Issue(3)：23-26,4.DOI:10.13921/j.cnki.issn1002-5561.2017.03.007
基于二维光子晶体的宽频带太赫兹滤波器特性分析
Characteristics analysis of a broadband THz filter based on two-dimensional photonic crystal
摘要
Abstract
A low-loss broadband terahertz filter based on two-dimensional photonic crystal is presented.The structure uses a linear defect straight waveguide to realize the transmission of the radiation wave.Terahertz wave can be well coupled by changing the point defect micro cavity of the dielectric cylinder radius and distribution which arranges in the middle of the straight waveguid, so as to achieve the filter effect.Simulation analysis about the characteristics of filter are carred out by using the plane wave expansion method (PWM) and the finite difference time-domain method (FDTD).Finally, two pairs of point defects have been introduced to realize the cascaded of two resonant cavities.关键词
太赫兹/光子晶体/谐振腔/滤波器Key words
terahertz(THz)/photonic crystal/resonant cavity/filter分类
信息技术与安全科学引用本文复制引用
潘武,尹霞,承皓,李选..基于二维光子晶体的宽频带太赫兹滤波器特性分析[J].光通信技术,2017,41(3):23-26,4.基金项目
重庆邮电大学新方向培育计划项目(A2014-116)资助. （A2014-116）
