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Influence of Integral Instability of Kramers-Kronig Transformation on Photoabsorption Cross Sections 被引量:1

Influence of Integral Instability of Kramers-Kronig Transformation on Photoabsorption Cross Sections
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摘要 The photoabsorption cross sections of condensed atoms and molecules have proven to be dependent not only on the imaginary parts but also on the real parts of the polarizabilities due to the strong interatomie interactions in condensed environment. The real parts of the polarizabilities calculated usually by using the famous Kramers-Kronig transformation (KKT) from the photoabsorption cross sections of the isolated atoms are very sensitive to the accuracy of the implementation method of the infinite integral in the KKT. The influence of the integral instability of the KKT and the real part of the polarizability on the variation of the photoabsorption cross sections with the number density and the structure of the condensed matter has been studied in the present work for the first time. The conclusion is that the integration method with interpolation has given more reasonable results than the direct truncation method if some appropriate interpolation functions have been used. Some notes and conclusions have also been given for the applications of the alternative coupled expressions of photoabsorption cross sections.
机构地区 Department of Physics
出处 《Communications in Theoretical Physics》 SCIE CAS CSCD 2009年第8期369-376,共8页 理论物理通讯(英文版)
基金 Supported by the Natural Science Foundations of Ludong University under Grant Nos.22270301 and L20072804
关键词 condensed-phase photoabsorption Kramers-Kronig transformation dynamic polarizability 光吸收截面 积分方法 凝聚态结构 极化率 相互作用 截断方法 不稳定 数密度
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  • 1O. Yenen, K.M. McLaughlin, D.H. Jaecks, M.M. Sant Anna, and E.A. Seddon Phys. Rev. Lett. 86 (2001) 979.
  • 2T.I.C. Jansen, M. Swart, L. Jensen, P.T. van Duijnen, and J. Snijders, J. Chem. Phys. 116 (2002) 3277.
  • 3A. Zangwill and P. Soven, Phys. Rev. A 21 (1980) 1561.
  • 4I. Kanik, L. Beegle, C. Noren, S.M. Ahmed, and R. Link, Chem. Phys. Lett. 279 (1997) 297.
  • 5H. van Kampen, A.V. Sautenkov, C.J.C. Smeets, R.E. Eliel, and P.J. Woerdman, Phys. Rev. A 59 (1999) 271.
  • 6U. Fano and J.W. Cooper, Rev. Mod. Phys. 40 (1968) 441.
  • 7X.G. Ma, Phys. Lett. A 348 (2006) 310.
  • 8W.G. Sun, X.G. Ma, and Y.S. Cheng, Phys. Lett. A 326 (2004) 243.
  • 9X.G. Ma and W.G. Sun, Chin. Phys. 14 (2005) 1792.
  • 10R. Kronig, J. Opt. Soc. Amer. 12 (1926) 547.

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