时变磁化等离子体光子晶体的禁带特性  

The Forbidden Band Gap of Time-varying Magnetized Plasma Photonic Crystals

作　　者：章海锋[1,2] 马力[3] 刘少斌[4] 

机构地区：[1]南昌大学机电学院,江西南昌3300047 [2]中国人民解放军炮兵学院南京分院,江苏南京211132 [3]南昌大学理学院,江西南昌330047 [4]南京航空航天大学信息科学与技术学院,江苏南京210016

出　　处：《发光学报》2009年第2期142-146,共5页Chinese Journal of Luminescence

基　　金：国家自然科学基金(60771017)资助项目

摘　　要：采用磁化等离子体的分段线形电流密度卷积(Piecewise Linear Current Density Recursive Convolution,PLCDRC)时域有限差分(Finite-Different Time-Domain,FDTD)算法研究了一维时变磁化等离子体光子晶体的禁带特性。以高斯脉冲为激励源,用算法公式所得的电磁波透射系数来讨论了等离子体上升时间、密度、周期常数对其禁带特性的影响。结果表明,改变等离子体上升时间和密度可以实现对禁带的控制。The piecewise linear current density recursive convolution （PLCDRC） finite-different time-domain （FDTD） method for magnetized plasmas was applied to study the characteristics of the one dimension time- varying magnetized plasma photonic crystal forbidden band gaps. The electromagnetic propagation process of a Gaussian pulse through a time-varying magnetized plasma photonic crystal was investigated. The transmission coefficients through time-varying magnetized plasma photonic crystals were calculated, and the effects of periodic constant, plasma temperature and density on characteristics of band gap structure for magnetized plasma photonic crystals were analyzed with them. The results illustrated that the different band gaps can be gotten by changing the rising time and density of plasma.

关 键 词：磁化等离子体光子晶体 光子晶体 时域有限差分法 禁带 

分 类 号：O484.41[理学—固体物理]