渐变空气孔THz波光子晶体光纤的色散特性  

Dispersion of THz Photonic Crystal Fiber with Varying Air Hole

作　　者：赵健东[1] 辛洁[1] 

机构地区：[1]中北大学信息与通信工程学院,山西太原030051

出　　处：《量子光学学报》2012年第2期208-211,共4页Journal of Quantum Optics

基　　金：中北大学2010年校基金

摘　　要：太赫兹(THz)波是指频率介于0.1THz～10THz范围内的电磁波,即介于毫米波与红外线之间,太赫兹波有很多优越的特性,在国防、航天、医学等领域具有潜在的应用价值。本文设计了一种渐变的空气孔THz波光子晶体光纤,其包层由周期分布的渐变空气孔构成,芯区是去掉一个空气孔形成的缺陷。采用带有良匹配层(APML)吸收边界的全矢量时域有限差分法(finite-difference time-domain,FDTD)对其色散特性进行了数值分析,计算结果表明这种渐变空气孔光子晶体光纤具有较强的色散控制能力。THz wave,frequencies range from 0.1 THz～10 THz,is the electromagnetic waves and located between millimeter and infrared.Due to their super properties,THz waves have potential applications on various research fields such as defense,aviations,and medical sciences,etc.A new type of THz photonic crystal fiber with an air hole varying cladding is designed in this paper.The finite-difference time-domain(FDTD) is used to numerically calculate the dispersion properities of this photonic crystal fiber and the results show that this kind of photonic crystal fiber can be used to control the dispersion.

关 键 词：THz波光子晶体光纤 时域有限差分法 色散 

分 类 号：O431[机械工程—光学工程]