Effects of the alloy compositions on the phonon-polaritons in ternary mixed crystals
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O7

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    Abstract:

    Composition dependence of bulk and surface phonon-polaritons in ternary mixed crystals are studied in the framework of the modified random-element-isodisplacement model and the Bom-Huang approximation. The numerical results for several Ⅱ - Ⅵ and Ⅲ-Ⅴ compound systems are performed, and the polariton frequencies as functions of the compositions for ternary mixed crystals AlxGa1-xAs, GaPxAs1-x, ZnSxSex-x, GaAsSb1-x, GaxIn1-xP, and ZnxCd1-xS as examples are given and discussed. The results show that the dependence of the energies of two branches of bulk phonon-polaritons which have phonon-like characteristics, and surface phonon-polaritons on the compositions of ternary mixed crystals are nonlinear and different from those of the corresponding binary systems.

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Jin Bao, Xi-xia Liang. Effects of the alloy compositions on the phonon-polaritons in ternary mixed crystals[J]. Optoelectronics Letters,2008,4(4):302-306

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  • Received:April 13,2010
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