A Study of Properties of the Photonic Band Gap of Unmagnetized Plasma Photonic Crystal

摘要

In this study,the propagation of electromagnetic waves in one-dimensional plasmaphotonic crystals(PPCs),namely,superlattice structures consisting alternately of a homogeneousunmagnetized plasma and dielectric material,is simulated numerically using the finite-differencetime-domain(FDTD)algorithm.A perfectly matched layer(PML)absorbing technique is usedin this simulation.The reflection and transmission coefficients of electromagnetic(EM)wavesthrough PPCs are calculated.The characteristics of the photonic band gap(PBG)are discussedin terms of plasma density,dielectric constant ratios,number of periods,and introduced layerdefect.These may provide some useful information for designing plasma photonic crystal devices.