Relativistic polarization analysis of Rayleigh scattering by atomic hydrogen

• Verfasst von: Safari, Laleh [VerfasserIn]
• Verfasst von: Amaro, Pedro [VerfasserIn]
• Verfasst von: Tashenov, Stanislav [VerfasserIn]
• Titel: Relativistic polarization analysis of Rayleigh scattering by atomic hydrogen
• Verf.angabe: L. Safari, P. Amaro, S. Fritzsche, J. P. Santos, S. Tashenov, and F. Fratini
• Fussnoten: Gesehen am 11.06.2018
• Titel Quelle: Enthalten in: Physical review / A
• Jahr Quelle: 2012
• Band/Heft Quelle: 86(2012,4) Artikel-Nummer 043405, 8 Seiten
• ISSN Quelle: 1094-1622
• DOI: doi:10.1103/PhysRevA.86.043405
• Datenträger: Online-Ressource
• Sprache: eng
• K10plus-PPN: 1576243370

Abstract

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 to5 keV. Particular attention is paid to the effects that arise from higher (nondipole) terms in the expansion of the electron-photon interaction.