1维时变磁化等离子体光子晶体的密温特性  

Temperature and density property of 1-D time-varying magnetized plasma photonic crystals

作　　者：章海锋[1] 郑建平[1] 杨国华[1] 

机构地区：[1]中国人民解放军炮兵学院南京分院,南京211132

出　　处：《激光技术》2011年第1期74-78,共5页Laser Technology

摘　　要：为了研究1维时变磁化等离子体光子晶体禁带的温度和密度特性,采用在等温近似的条件下,磁化等离子体的分段线形电流密度卷积时域有限差分算法研究了1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,用算法公式得到的电磁波透射系数来讨论了等离子体上升时间、温度、等离子体层密度对其禁带特性的影响。结果表明,改变等离子体上升时间和等离子体层密度可以实现对禁带的控制。这一结果对设计磁化等离子体光子晶体器件有帮助。In order to study temperature and density property of prohibited hand gap in one dimension time-varying magnetized plasma photonic crystals, the characteristics of the prohibited band gap were studied by means of piecewise linear current density recursive convolution finite-different time-domain method for magnetized plasmas under the isothermal hypothesis. The electromagnetic propagation process of a Gaussian pulse through a magnetized plasma photonie crystal was investigated. The transmission coefficients through magnetized plasma photonic crystals were calculated based on which the effect of plasma rising time, temperature and density on characteristics of band gap was analyzed. The results illustrate that the band gaps can be controlled by changing rising time and density of plasma. The results are helpful to design of devices of magnetized plasma photonic crystals.

关 键 词：材料 物理光学 光子晶体 时变等离子体 时域有限差分法 禁带 

分 类 号：O436[机械工程—光学工程]