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Abstract
We generalize our former work to superlattices with finite number of layers, and obtain the corresponding dispersion relations for the bulk as well as the surface modes. Numerical computations show a superlattice with 20 supercells behaves already very near to an infinite su-perlattice with regard to the propagation characteristics of electromagnetic waves. However, important differences appear when the number of supercells is small.
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SHI HANG¹,

CAI JIAN-HUA²
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[2]	Liu Jian-Xiao, Zhang Jun-Liang, Su Ming-Min.Finite-difference time domain method for the analysis of radar scattering characteristic of metal target coated with anisotropic ferrite. Acta Physica Sinica, 2014, 63(13): 137501.doi:10.7498/aps.63.137501
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[13]	.A recursive convolution-finite-difference time-domain implementation of electromagnetic scattering by magnetized ferrite medium. Acta Physica Sinica, 2007, 56(12): 6937-6944.doi:10.7498/aps.56.6937
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[17]	WU YING, YAO KAI-LUN.FINITE WAVENUMBER EFFECT ON AC JOSEPHSON CURRENT. Acta Physica Sinica, 1990, 39(8): 132-137.doi:10.7498/aps.39.132
[18]	SHI HANG, CAI JIAN-HUA.ELECTROMAGNETIC MODES IN SUPERLATTICES WITH NONLOCAL DIELECTRIC FUNCTION. Acta Physica Sinica, 1988, 37(4): 589-597.doi:10.7498/aps.37.589
[19]	SHI HANG, CAI JIAN-HUA.EFFECT OF SURFACE ROUGHNESS ON THE SURFACE POLARITON MODES ON SEMI-INFINITE SUPERLATTICES. Acta Physica Sinica, 1988, 37(6): 931-940.doi:10.7498/aps.37.931
[20]	SHI HANG, CAI JIAN-HUA.POLARITONS IN MAGNETIC SUPERLATTICES. Acta Physica Sinica, 1988, 37(5): 817-822.doi:10.7498/aps.37.817

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Vol. 37, Issue 4 - 1988-02-20

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