Photoionization of the hydrogen atom near the ionization limit in strong electric fields

Journal Article · Wed Jan 01 04:00:00 EST 1986 · Phys. Rev. A; (United States)

DOI:https://doi.org/10.1103/PhysRevA.33.301· OSTI ID:6280875

Rottke, H; Welge, K H

The Stark spectroscopy of the hydrogen atom has been investigated near the ionization threshold in static homogeneous external electric fields from approx.1000 to approx.8000 V/cm with use of a two-step excitation H(n = 1)+h /sub vuv/ H(n = 2)+h /sub uv/ H( with vuv and uv laser radiation, independently tunable and linearly polarized either parallel ( ) or perpendicular (sigma) with respect to the external field. Different from other, nonhydrogenic atoms, the hydrogen atom is a peculiar case insofar as the initial states of H(n = 2), from which excitation takes place, are essentially of parabolic character at the field strengths employed in this study.

• Research Organization: Fakultaet fuer Physik, Universitaet Bielefeld, D-4800 Bielefeld 1, Federal Republic of Germany
• OSTI ID: 6280875
• Journal Information: Phys. Rev. A; (United States), Journal Name: Phys. Rev. A; (United States) Vol. 33:1; ISSN PLRAA
• Country of Publication: United States
• Language: English

Related Subjects

640302* -- Atomic
Molecular & Chemical Physics-- Atomic & Molecular Properties & Theory
74 ATOMIC AND MOLECULAR PHYSICS
BEAM DYNAMICS
BEAM-BEAM INTERACTIONS
CROSS SECTIONS
ELECTRIC FIELDS
ELECTROMAGNETIC RADIATION
ELEMENTS
ENERGY
HYDROGEN
IONIZATION
LASER RADIATION
MULTI-PHOTON PROCESSES
NONMETALS
OSCILLATIONS
PHOTOIONIZATION
RADIATIONS
STARK EFFECT
THRESHOLD ENERGY