FINITE-DIFFERENCE TIME-DOMAIN ANALYSIS OF UNMAGNETIZED PLASMA PHOTONIC CRYSTALS |
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| Authors: | Shaobin Liu Wei Hong and Naichang Yuan |
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| Institution: | (1) College of Information Science & Technology, Nanjing University of Aeronautics and Astronautics, Nanjing, Jiangsu, 210016, P.R. China;(2) State Key Laboratory of Millimeter Waves, Southeast University, Nanjing, Jiangsu, 210096, P.R. China;(3) Institute of Electronic Science and Engineering, National University of Defense Technology, Changsha, Hunan, 410073, P.R. China |
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| Abstract: | 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. |
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| Keywords: | Plasma photonic crystals Frequency dispersion Finite-difference time-domain Plasma |
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