中国物理B ›› 2002, Vol. 11 ›› Issue (2): 144-149.doi: 10.1088/1009-1963/11/2/308

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Influences of nonlinear interactions of polaritons in uniaxial crystals

罗莹1, 马本堃1, 牛家胜2   

  1. (1)Department of Physics, Beijing Normal University, Beijing 100875, China; (2)Institute of Low Energy Nuclear Physics, Beijing Normal University, Beijing 100875, China; Department of Physics, Beijing Normal University, Beijing 100875, China
  • 收稿日期:2001-07-20 修回日期:2001-09-13 出版日期:2002-02-13 发布日期:2005-06-13

Influences of nonlinear interactions of polaritons in uniaxial crystals

Niu Jia-Sheng (牛家胜)ab, Luo Ying (罗莹)b, Ma Ben-Kun (马本堃)b   

  1. a  Institute of Low Energy Nuclear Physics, Beijing Normal University, Beijing 100875, China; b  Department of Physics, Beijing Normal University, Beijing 100875, China
  • Received:2001-07-20 Revised:2001-09-13 Online:2002-02-13 Published:2005-06-13

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摘要： 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.

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.

Key words: uniaxial crystal, polariton, self-energy correction

中图分类号:  (Polaritons (including photon-phonon and photon-magnon interactions))

  • 71.36.+c
77.22.Ch (Permittivity (dielectric function)) 63.20.-e (Phonons in crystal lattices)