Ac Stark effect and trapping of population on Rydberg levels in a strong ionizing field

Journal Article · Tue Aug 01 04:00:00 EDT 1989 · J. Opt. Soc. Am. B: Opt. Phys.; (United States)

DOI:https://doi.org/10.1364/JOSAB.6.001504· OSTI ID:5810068

Fedorov, M V; Movsesian, A M

Ac Stark splitting and ionization broadening of atomic Rydberg levels in a strong electromagnetic field are described. The quasi-energy atomic spectrum is shown to consist of a quasi-continuum plus two sets of narrow quasi-energy levels: weakly split and broadened almost field-free levels and strongly perturbed levels, whose width is a decreasing function of the field strength amplitude. The strong-field asymptotics of the photoelectron spectrum and of the time-dependent total photoionization probability are described. The photoelectron spectrum is shown to have a multipeak structure, and the shape of each peak is shown to be different from the Lorenz shape found earlier. This effect is explained by the contribution of the quasi-continuous quasi-energy spectrum. The same reason explains a partially nonexponential time dependence of the total photoionization probability.

• Research Organization: General Physics Institute, Academy of Sciences of the USSR, Vavilov Street 38, 117942 Moscow, USSR (SU)
• OSTI ID: 5810068
• Journal Information: J. Opt. Soc. Am. B: Opt. Phys.; (United States), Journal Name: J. Opt. Soc. Am. B: Opt. Phys.; (United States) Vol. 6:8; ISSN JOBPD
• Country of Publication: United States
• Language: English

Related Subjects

640302* -- Atomic
Molecular & Chemical Physics-- Atomic & Molecular Properties & Theory
74 ATOMIC AND MOLECULAR PHYSICS
ELECTRIC FIELDS
ELECTRICAL PROPERTIES
ELEMENTS
ENERGY LEVELS
EXCITED STATES
HYDROGEN
IONIZATION
LINE BROADENING
NONMETALS
PHOTOIONIZATION
PHYSICAL PROPERTIES
POLARIZABILITY
RYDBERG STATES
STARK EFFECT