Atomic ionization by intense laser pulses of short duration: Photoelectron energy and angular distributions

Journal Article · Mon Nov 15 00:00:00 EST 2010 · Physical Review. A

DOI:https://doi.org/10.1103/PHYSREVA.82.053419· OSTI ID:21528679

Dondera, M ^[1]

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1. University of Bucharest, Faculty of Physics, Bucharest-Magurele 077125 (Romania)

We introduce an adequate integral representation of the wave function in the asymptotic region, valid for the stage postinteraction between a one-electron atom and a laser pulse of short duration, as a superposition of divergent radial spherical waves. Starting with this representation, we derive analytic expressions for the energy and angular distributions of the photoelectrons and we show their connection with expressions used before in the literature. Using our results, we propose a method to extract the photoelectron distributions from the time dependence of the wave function at large distances. Numerical results illustrating the method are presented for the photoionization of hydrogenlike atoms from the ground state and several excited states by extreme ultraviolet pulses with a central wavelength of 13.3 nm and several intensities around the value I{sub 0}{approx_equal}3.51x10{sup 16} W/cm{sup 2}.

• OSTI ID: 21528679
• Journal Information: Physical Review. A, Vol. 82, Issue 5; Other Information: DOI: 10.1103/PhysRevA.82.053419; (c) 2010 The American Physical Society; ISSN 1050-2947
• Country of Publication: United States
• Language: English

Related Subjects

74 ATOMIC AND MOLECULAR PHYSICS
73 NUCLEAR PHYSICS AND RADIATION PHYSICS
ANGULAR DISTRIBUTION
ASYMPTOTIC SOLUTIONS
EXCITED STATES
EXTREME ULTRAVIOLET RADIATION
LASER RADIATION
PHOTOIONIZATION
PULSES
SPHERICAL CONFIGURATION
TIME DEPENDENCE
WAVE FUNCTIONS
WAVE PROPAGATION
WAVELENGTHS
CONFIGURATION
DISTRIBUTION
ELECTROMAGNETIC RADIATION
ENERGY LEVELS
FUNCTIONS
IONIZATION
MATHEMATICAL SOLUTIONS
RADIATIONS
ULTRAVIOLET RADIATION