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The filter properties of the electromagnetic wave in one-dimensional plasma photonic crystals with defects, which consist of unmagnetized plasmas and microwave lossy dielectrics (MLDs), were studied by the Finite Difference Time Domain (FDTD) method in this paper. The results were presented that the thickness, the plasma angular frequency, and the dielectric relative permittivity in the defect layer can influence the filter properties in the plasma photonic crystals. As a possible application, the transmission and filter characteristics of the plasma photonic crystal under incident high power wave were discussed. [ABSTRACT FROM AUTHOR]

This paper presents numerical results in the form of graphs of the power reflection coefficients for electromagnetic signals normally incident upon a conductive plane covered with two layers of inhomogeneous plasma slabs. The plasma electron density varies only in the direction perpendicular to the plane. Parameters considered in the computation cover a relatively wide range and the functional dependence of the power reflection coefficients on these parameters is studied. The results indicate that in a rather broad frequency range, the electromagnetic attenuations by the double slabs obviously excel the sum of attenuations resulted from two plasma layers when each layer exits respectively. The structure presented is easy to set up, which is instructive for plasma stealth. [ABSTRACT FROM AUTHOR]