CAJ | 학술논문

设计一种工作于太赫兹波段的锥台型光子晶体，利用CST软件研究了光子晶体的禁带特性。通过在0.3～1 THz范围内进行模拟仿真得出，锥台型光子晶体存在光子禁带。与普通的圆柱形光子晶体进行了对比，并对不同的参数进行仿真发现：禁带范围会随着参数的改变而整体移动，其中取锥台顶部半径0.05～0.1 mm间隔0.01 mm，发现随着锥台顶部圆的半径的减小，禁带向高频方向移动。取晶格常数0.2～0.3 mm间隔0.05 mm发现随着晶格常数的增大会使禁带向低频方向移动。研究结果为太赫兹光子晶体波导研究提供理论依据。
설계일충공작우태혁자파단적추태형광자정체，이용CST연건연구료광자정체적금대특성。통과재0.3～1 THz범위내진행모의방진득출，추태형광자정체존재광자금대。여보통적원주형광자정체진행료대비，병대불동적삼수진행방진발현：금대범위회수착삼수적개변이정체이동，기중취추태정부반경0.05～0.1 mm간격0.01 mm，발현수착추태정부원적반경적감소，금대향고빈방향이동。취정격상수0.2～0.3 mm간격0.05 mm발현수착정격상수적증대회사금대향저빈방향이동。연구결과위태혁자광자정체파도연구제공이론의거。
A frustum photonic crystal which is working in the terahertz band is designed.The CST MWS is used to study the band-gap properties of photonic crystals.From the simulation in THz range from 0.3 THz to 1THz,the frus-tum photonic crystals have photonic band gap.Compared with the general cylindrical photonic crystals,the photonic crystals are simulated by relevant simulation software,it is found that band gap range moves with the change of the pa-rameters,which changes radius of frustum top from 0.05 to 0.1 mm spacing with 0.01 mm,it is found that band gap shifts to high frequency with the decrease of the radius at the top of the frustum.Changing the lattice constant from 0.2 to 0.3 mm spacing with 0.05 mm,it is found that the band gap shifts towards low frequency with the increase of lat-tice constant.The research results provide theoretical basis for the study of the terahertz photonic crystal waveguide.