FINITE-DIFFERENCE TIME-DOMAIN ANALYSIS OF UNMAGNETIZED PLASMA PHOTONIC CRYSTALS
FINITE-DIFFERENCE TIME-DOMAIN ANALYSIS OF UNMAGNETIZED PLASMA PHOTONIC CRYSTALS
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DOI：
10.1007/s10762-006-9075-x
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发表时间：
2007-01
期刊：
影响因子：
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通讯作者：
Shaobin Liu;W. Hong;N. Yuan
中科院分区：
文献类型：
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作者：
Shaobin Liu;W. Hong;N. Yuan
等离子体光子晶体是由非磁化（或磁化）等离子体和介质（或真空）交替组成的周期性阵列。本文将模拟各向同性非磁化等离子体的分段线性电流密度递推卷积时域有限差分法应用于非磁化等离子体光子晶体结构的模拟。在这些模拟中使用了完全匹配的层吸收材料。在时域上，研究了高斯脉冲通过非磁化等离子体光子晶体的电磁传输过程。在频域中，计算了非磁化等离子体光子晶体的反射和透射系数，研究了它们与等离子体频率、等离子体厚度、碰撞频率的关系。结果表明，非磁化等离子体光子晶体的电磁带隙可以通过等离子体参数进行调谐。
The plasma photonic crystal is a periodic array composed of alternating thin unmagnetized (or magnetized) plasmas and dielectric materials (or vacuum). In this paper, the piecewise linear current density recursive convolution finite-difference time-domain method for the simulation of isotropic unmagnetized plasma is applied to model unmagnetized plasma photonic crystal structures. A perfectly matched layer absorbing material is used in these simulations. In time-domain, the electromagnetic propagation process of a Gaussian pulse through an unmagnetized plasma photonic crystal is investigated. In frequency-domain, the reflection and transmission coefficients through unmagnetized plasma photonic crystals are computed and their dependence on plasma frequency, plasma thickness, collision frequency is studied. The results show theoretically that the electromagnetic bandgaps of unmagnetized plasma photonic crystals are tuned by the plasma parameters.