温度、密度对磁化等离子体光子晶体的影响

摘要

为了研究温度、密度对磁化等离子体光子晶体禁带特性的影响,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温度、等离子体层密度对其禁带特性的影响.结果表明,改变温度和等离子体层密度分布可以实现对禁带的控制.%In order to study the effect of plasma temperature and density on the characteristics of the prohibit band gap in magnetized plasma photonic crystals,under the isothermal hypothesis,the characteristics of the prohibit band gaps for one-dimension magnetized plasma photonic crystals were studied with piecewise linear current density recursive convolution finite-different time-domain method.The electromagnetic propagation process of a Gaussian pulse through a magnetized plasma photonic crystal was investigated.The transmission coefficients through the magnetized plasma photonic crystal were calculated based on which the effect of plasma temperature and density on characteristics of band gap was analyzed.The results illustrate that the band gap can be controlled by changing the temperature and density of plasma.