中国物理B ›› 2007, Vol. 16 ›› Issue (12): 3873-3878.doi: 10.1088/1009-1963/16/12/054

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Two-photon absorption coefficient dichroism in II--VI semiconductor crystals

唐星海1, 马 红2, 马国宏2, 马洪良3   

  1. (1)Department of Physics, National University of Singapore, Singapore 119260; (2)Department of Physics, Shanghai University, Shanghai 200444, China; (3)Instrumental Analysis & Research Center, Shanghai University, Shanghai 200444, China
  • 出版日期:2007-12-20 发布日期:2007-12-20
  • 基金资助:
    Project supported by Science and Technology Commission of Shanghai municipal (Grant No~ 06PJ14042), Shanghai Municipal Education Commission (Grant No~06AZ089), and the Shanghai Leading Academic Discipline Program (Grant No~T0104).

Two-photon absorption coefficient dichroism in II--VI semiconductor crystals

Ma Hong(马红)a), Ma Guo-Hong(马国宏)a)†, Ma Hong-Liang(马洪良)b), and Tang Sing-Hai(唐星海)c)   

  1. a Department of Physics, Shanghai University, Shanghai 200444, China; b Instrumental Analysis & Research Center, Shanghai University, Shanghai 200444, China; c Department of Physics, National University of Singapore, Singapore 119260
  • Online:2007-12-20 Published:2007-12-20
  • Supported by:
    Project supported by Science and Technology Commission of Shanghai municipal (Grant No~ 06PJ14042), Shanghai Municipal Education Commission (Grant No~06AZ089), and the Shanghai Leading Academic Discipline Program (Grant No~T0104).

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摘要： Considering two beams propagate in semiconductor crystal, this paper discusses the polarization dependence of pump beam-induced intensity attenuation of probe beam due to two-photon absorption (TPA). Numerical calculation and experimental measurement demonstrate that TPA coefficient is polarization dependent. For homogeneous materials, probe beam attenuation arises from the imaginary part of diagonal and off-diagonal components of third-order nonlinear susceptibilities.

关键词: two-photon absorption, semiconductor crystals, nonlinear susceptibility, \\ \hspace*{1.9cm} polarization dependence

Abstract: Considering two beams propagate in semiconductor crystal, this paper discusses the polarization dependence of pump beam-induced intensity attenuation of probe beam due to two-photon absorption (TPA). Numerical calculation and experimental measurement demonstrate that TPA coefficient is polarization dependent. For homogeneous materials, probe beam attenuation arises from the imaginary part of diagonal and off-diagonal components of third-order nonlinear susceptibilities.

Key words: two-photon absorption, semiconductor crystals, nonlinear susceptibility, polarization dependence

中图分类号:  (Optical constants (including refractive index, complex dielectric constant, absorption, reflection and transmission coefficients, emissivity))

  • 78.20.Ci
78.20.Fm (Birefringence)