Influences of nonlinear interactions of polaritons in uniaxial crystals |
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| Authors: | Niu Jia-Sheng Luo Ying and Ma Ben-Kun |
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| Institution: | Institute of Low Energy Nuclear Physics, Beijing Normal University, Beijing 100875, China; Department of Physics, Beijing Normal University, Beijing 100875, China |
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| Abstract: | We have analysed theoretically the polarization and dielectric constant of uniaxial ionic crystals, including the effect of the nonlinear interactions between ions. The spectrum of polaritons (coupling modes of photons and optical phonons) under nonlinear interactions was developed. A new branch of dispersion relations emerges in the original frequency gap. |
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| Keywords: | uniaxial crystal polariton self-energy correction |
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