期刊
PHYSICAL REVIEW A
卷 86, 期 4, 页码 -出版社
AMER PHYSICAL SOC
DOI: 10.1103/PhysRevA.86.043405
关键词
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资金
- Research Council for Natural Sciences and Engineering of the Academy of Finland
- German Research Foundation (DFG) within the Emmy Noether program [TA 740 1-1]
- FiDiPro program of the Finnish Academy
- FCT-Fundacao para a Ciencia e a Tecnologia (Portugal) [PEstOE/FIS/UI0303/2011, PTDC/FIS/117606/2010]
- European Community Fund FEDER through the COMPETE-Competitiveness Factors Operational Programme
- Fundacao de Amparo a Pesquisa do estado de Minas Gerais (FAPEMIG)
- Fundação para a Ciência e a Tecnologia [PTDC/FIS/117606/2010] Funding Source: FCT
A relativistic analysis of the polarization properties of light elastically scattered by atomic hydrogen is performed, based on the Dirac equation and second-order perturbation theory. The relativistic atomic states used for the calculations are obtained by making use of the finite basis set method and are expressed in terms of B splines and B polynomials. We introduce two experimental scenarios in which the light is circularly and linearly polarized, respectively. For each of these scenarios, the polarization-dependent angular distribution and the degrees of circular and linear polarization of the scattered light are investigated as a function of scattering angle and photon energy. Analytical expressions are derived for the polarization-dependent angular distribution which can be used for scattering by both hydrogenic as well as many-electron systems. Detailed computations are performed for Rayleigh scattering by atomic hydrogen within the incident photon energy range 0.5 to 5 keV. Particular attention is paid to the effects that arise from higher (nondipole) terms in the expansion of the electron-photon interaction.
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