含复介电常数一维光子晶体的滤波特性  

Filter Characteristics of One-Dimensional Photonic Crystal with Complex Dielectric Constant

作　　者：苏安[1,2] 高英俊[1] 

机构地区：[1]广西大学物理科学与工程技术学院,广西南宁530004 [2]河池学院物理与电子工程系,广西宜州546300

出　　处：《中国激光》2009年第6期1535-1538,共4页Chinese Journal of Lasers

基　　金：国家自然科学基金(50661001;50061001);广西科学基金(0832029;0991026;0639004)资助课题

摘　　要：利用传输矩阵法计算模拟了一维光子晶体（ABCBA）m的透射谱，当介电常数为实数时，光子晶体透射谱出现有规律性的共振透射锋，具有多通道光滤波的特性；当C层介质中掺入增益特性的杂质时，透射峰出现多条合一现象，且当周期数m为奇数时，出现透射率恒为0．05ω／ω。的透射衰减现象，当周期数m为偶数时出现高达10^4数量级的透射增益现象，增益的强度与重复周期数m和C层折射率的虚部大小密切相关。这些现象为光子晶体实现单通道光滤波器、多通道光滤波器和光放大器提供理论指导。The transmission spectra of one-dimensional photonic crystal （ABCBA）m, are calculated by means of the transfer matrix method. As the dielectric constant is a real number, the transmission resonance spectrum in photonic crystals is of multi-channel optical filtering properties. When the C medium is added with active matter, there is only one resonance peak. If the number of m is an odd, the rate of transmission is 0.05 at ω/ω0. If the number of m is even, then the rate is up to 10^4. The strength of the gain is closely related to the number of m and the value of the imaginary part. It provides theoretical guidance for designing new photonic instrument with properties of singlechannel optical filter, multi-channel optical amplifiers and filters.

关 键 词：光子晶体 复介电常量 透射增益 

分 类 号：O734[理学—晶体学]