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.