Atomic hydrogen in a strong optical radiation field

Journal Article · Wed Jun 01 04:00:00 EDT 1994 · Physical Review A; (United States)

DOI:https://doi.org/10.1103/PhysRevA.49.4837· OSTI ID:7049788

Rottke, H; Wolff-Rottke, B; Feldmann, D; Welge, K H ^[1]; Doerr, M ^[2]; Potvliege, R M ^[3]; Shakeshaft, R ^[4]

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1. Fakultaet fuer Physik, Universitaet Bielefeld, D-33501 Bielefeld 1 (Germany)
2. Physique Theorique CP227, Universite Libre de Bruxelles, B-1050 Brussels (Belgium.)
3. Physics Department, University of Durham, Durham DH13LE (United Kingdom)
4. Physics Department, University of Southern California, Los Angeles, California 90089-0484 (United States)

Experimental energy spectra and energy-resolved angular distributions of photoelectrons produced by multiphoton ionization of atomic hydrogen are presented for several wavelengths bewteen 596 and 630 nm, peak intensities of about 10[sup 14] W/cm[sup 2], and laser pulse durations of about 0.5 ps. Resonant ionization processes via ac Stark-shift-induced resonances with excited states dominate the spectra. The results of Sturmian-Floquet calculations of these spectra and angular distributions are presented; they are in fair agreement with the experimental data.

• OSTI ID: 7049788
• Journal Information: Physical Review A; (United States), Journal Name: Physical Review A; (United States) Vol. 49:6; ISSN 1050-2947; ISSN PLRAAN
• Country of Publication: United States
• Language: English

Related Subjects

664200* -- Spectra of Atoms & Molecules & their Interactions with Photons-- (1992-)
74 ATOMIC AND MOLECULAR PHYSICS
ANGULAR DISTRIBUTION
ATOMS
DISTRIBUTION
ELEMENTS
EMISSION
HYDROGEN
IRRADIATION
MULTI-PHOTON PROCESSES
NONMETALS
PHOTOEMISSION
PULSED IRRADIATION
RESONANCE
SECONDARY EMISSION
SPECTRAL SHIFT
STARK EFFECT