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V.V. Rumyantsev, S.A. Fedorov and K.V. Gumennyk
Galkin Donetsk Institute for Physics and Engineering, National Academy of Sciences, Ukraine
Series: Materials Science and Technologies
BISAC: TEC021000
1D photonic crystalline superlattice is modeled as both a layered crystal and striped thin film. These 1D systems are sets of elements (layers or strips) with randomly included extrinsic (with respect to the ideal superlattices) elements (layers or strips) of a variable thickness or composition. The photon modes spectrum of a non-ideal superlattice with an arbitrary number of layers (strips) per elementary cell, obtained within the virtual crystal approximation, is concretized for the Si – diamond layered system, Si-liquid crystal and Si/SiO2/GaAs striped film. Dependence of the band gap width upon concentration of admixture elements and refractive index peculiarities is analyzed. The study carried out shows that optical characteristics of the nonideal photonic crystals may vary due to transformation of its photon modes spectrum caused by the presence of admixture elements (layers or strips). (Imprint: Nova)
Table of Contents
ABSTRACT
INTRODUCTION
PROPAGATION OF ELECTROMAGNETIC WAVES IN INHOMOGENEOUS STRUCTURES
DEPENDENCE OF THE POLARITON SPECTRUM ON THE CONCENTRATION OF IMPURITY LAYERS IN A NONIDEAL SUPERLATTICE
PROPAGATION OF ELECTROMAGNETIC EXCITATION IN IMPERFECT QUASI-TWO-DIMENSIONAL PHOTONIC 1D CRYSTAL
CONCLUSION
REFERENCES
INDEX
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