Photoelectron momentum distributions of the hydrogen atom driven by multicycle elliptically polarized laser pulses

Mitsuko Murakami and Shih-I Chu

Phys. Rev. A 93, 023425 – Published 25 February 2016

Abstract

Photoelectron momentum distributions (PMDs) of the hydrogen atom driven by multicycle elliptically polarized strong laser fields are studied in detail, based on the numerical solution of the time-dependent Schrödinger equation and the Volkov wave propagation. Both short and long driving pulses of the 800-nm field are considered, as well as the ellipticity dependence, to describe the mechanism of symmetry breaking in the hydrogen-atom PMD. Moreover, we demonstrate that the value of a retardation angle in the longitudinal PMD can depend on the order of above-threshold ionization spectra.

Received 2 December 2015
Revised 4 February 2016

DOI:https://doi.org/10.1103/PhysRevA.93.023425

Physics Subject Headings (PhySH)

Multiphoton or tunneling ionization & excitation Ultrashort pulses

Atoms

First-principles calculations Nonperturbative methods Schroedinger equation

Atomic, Molecular & Optical

Authors & Affiliations

Mitsuko Murakami^1,* and Shih-I Chu^1,2

¹Department of Physics, Center for Quantum Science and Engineering and Center for Advanced Study in Theoretical Sciences, National Taiwan University, Taipei 10617, Taiwan
²Department of Chemistry, University of Kansas, Lawrence, Kansas 66045, USA

^*mitsuko@phys.ntu.edu.tw

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Issue

Vol. 93, Iss. 2 — February 2016

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