Dynamics of a one-dimensional model and a three-dimensional hydrogen atom in an intense high-frequency short-pulse laser

Journal Article · Thu Aug 01 00:00:00 EDT 1991 · Physical Review A. General Physics; (United States)

DOI:https://doi.org/10.1103/PhysRevA.44.R1454· OSTI ID:5375948

Tang, X ^[1]; Basile, S ^[2]

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1. Department of Physics, University of Southern California, Los Angeles, CA (USA)
2. Department of Physics, University of Southern California, Los Angeles, CA (USA) di Fisica Teorica dell'Universita, Casello Postale 50, 98166 Sant'Agata di Messina, Messina, Italy (IT)

We present nonperturbative calculations of ionizing and trapping probabilities for a one-dimensional model and a three-dimensional hydrogen atom in an intense high-frequency Gaussian-pulsed laser field. Investigating the dynamics of the ionization process (for one- and two-photon ionization), we find that only for extremely short pulses, especially for hydrogen, does the system have a significant probability of surviving at the end of the pulse, leading to the phenomenon of atomic stabilization with respect to ionization. We also find that a one-dimensional model has a higher survival probability at the end of a Gaussian pulse, as compared to the three-dimensional hydrogen atom.

• DOE Contract Number: FG03-87ER60504
• OSTI ID: 5375948
• Journal Information: Physical Review A. General Physics; (United States), Vol. 44:3; ISSN 1050-2947
• Country of Publication: United States
• Language: English

Related Subjects

74 ATOMIC AND MOLECULAR PHYSICS
GAS LASERS
HYDROGEN
IONIZATION
ATOMIC MODELS
ELECTRIC FIELDS
MULTI-PHOTON PROCESSES
PULSES
SCHROEDINGER EQUATION
STABILIZATION
TRAPPING
WAVE FUNCTIONS
DIFFERENTIAL EQUATIONS
ELEMENTS
EQUATIONS
FUNCTIONS
LASERS
MATHEMATICAL MODELS
NONMETALS
PARTIAL DIFFERENTIAL EQUATIONS
WAVE EQUATIONS
640302* - Atomic
Molecular & Chemical Physics- Atomic & Molecular Properties & Theory