二维太赫兹光子晶体能带结构研究  

Study on the Band Structure of Two-dimensional Terahertz Photonic Crystals

作　　者：刘荣青 

机构地区：[1]上海电力大学电子与信息工程学院

出　　处：《科技创新与应用》2020年第7期9-10,14,共3页Technology Innovation and Application

摘　　要：文章应用平面波法和时域有限差分法研究了二维太赫兹光子晶体TM模能带结构。研究发现,当晶格常数a=100×10-6m,介质柱半径R=0.3a时,可以得到TM模式下THz波段的最佳能带结构。此研究结果对高速率、超宽带THz通信系统的发展具有重要的指导意义,为太赫兹波器件的开发提供重要理论依据。In this paper,plane wave method and finite-difference time-domain method are used to study the band structure of TM mode of 2D terahertz photonic crystal.The study found that when the lattice constant is 100×10-6m and the dielectric column radius is 0.3a,the best band structure of THz band in TM mode can be obtained.This research result has important guiding significance for the development of high-speed,ultra-wideband THz communication systems,and provides an important theoretical basis for the development of terahertz wave devices.

关 键 词：太赫兹 二维光子晶体 平面波法 时域有限差分法 禁带 

分 类 号：O734[理学—晶体学]