XUV and x-ray elastic scattering of attosecond electromagnetic pulses on atoms

Abstract : Elastic scattering of electromagnetic pulses on atoms in XUV and soft X-ray ranges is considered for ultra-short pulses. The inclusion of the retardation term, non-dipole interaction and an efficient scattering tensor approximation allowed studying the scattering probability in dependence of the pulse duration for different carrier frequencies. Numerical calculations carried out for Mg, Al and Fe atoms demonstrate that the scattering probability is a highly non-linear function of the pulse duration and has extrema for pulse carrier frequencies in the vicinity of the resonance-like features of the polarization charge spectrum. Closed expressions for the non-dipole correction and the angular dependence of the scattered radiation are obtained.
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Journal of Physics B: Atomic, Molecular and Optical Physics, IOP Publishing, 2017, 50 (23), 〈10.1088/1361-6455/aa90cf〉
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F. Rosmej, V. A. Astapenko, V S Lisitsa. XUV and x-ray elastic scattering of attosecond electromagnetic pulses on atoms. Journal of Physics B: Atomic, Molecular and Optical Physics, IOP Publishing, 2017, 50 (23), 〈10.1088/1361-6455/aa90cf〉. 〈hal-01662038〉

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