Attosecond interferometry of neon atom: photoelectron angular distributions

Author:

S. N. Yudin1,M. M. Popova1,E. V. Gryzlova1,M. D. Kiselev1,A. N. Grum–Grzhimailo1

Affiliation:

1. D.V. Skobeltsyn Institute of Nuclear Physics, Lomonosov Moscow State University. Moscow , Russia

Abstract

In the paper we present the angular distributions of photoelectrons in ionization of neon atom by a field of several multiple frequencies. The considered setup is refered to the RABBITT (Reconstruction of Attosecond Beating By Interference of Two-photon Transitions) spectroscopy under condition that the field frequencies are selected in such a way that resonant transitions through discrete states play an important role. The role of the phase of the seed infrared field on the angular distributions of photoemission is analyzed. A significant difference in the anisotropy parameters at the near-threshold sideband caused by transitions through discrete states is shown. Two methods are compared: numerical solution of rate equations with continuum discretization and third-order perturbation theory.

Funder

Russian Foundation for Basic Research

Ministry of Science and Higher Education of the Russian Federation

Publisher

Moscow University Press

Subject

Space and Planetary Science,General Physics and Astronomy,Astronomy and Astrophysics

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