Multiphoton ionization of atomic hydrogen in intense subpicosecond laser pulses

Journal Article · Mon Jan 22 04:00:00 EST 1990 · Physical Review Letters; (USA)

DOI:https://doi.org/10.1103/PhysRevLett.64.404· OSTI ID:6996731

Rottke, H; Wolff, B; Brickwedde, M; Feldmann, D; Welge, K H ^[1]

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1. Fakultaet fuer Physik, Universitaet Bielefeld, D-4800 Bielefeld 1, West Germany (DE)

Multiphoton ionization of atomic hydrogen is investigated experimentally in the short-pulse regime ({tau}{le}0.5 ps) at wavelengths around 600 nm and intensities up to 10{sup 14} W/cm{sup 2}. Sharp peaks in the energy spectrum of the photoelectrons can be attributed to resonant ionization processes via excited states which are ac-Stark shifted into resonance. Energies and angular distributions of the electrons allow one to identify some participating excited states with quantum numbers {ital n}{ge}4 and {ital l}{ge}3.

• OSTI ID: 6996731
• Journal Information: Physical Review Letters; (USA), Journal Name: Physical Review Letters; (USA) Vol. 64:4; ISSN PRLTA; ISSN 0031-9007
• Country of Publication: United States
• Language: English

Related Subjects

640302* -- Atomic
Molecular & Chemical Physics-- Atomic & Molecular Properties & Theory
74 ATOMIC AND MOLECULAR PHYSICS
AC SYSTEMS
ANGULAR DISTRIBUTION
ATOMS
DISTRIBUTION
ELECTROMAGNETIC RADIATION
ELECTRON SPECTRA
ELEMENTS
EMISSION
ENERGY LEVELS
ENERGY SYSTEMS
EXCITED STATES
FUNCTIONS
HYDROGEN
IONIZATION
LASER RADIATION
NONMETALS
PHOTOEMISSION
PHOTOIONIZATION
POWER SYSTEMS
PULSES
QUANTUM NUMBERS
RADIATIONS
RESONANCE
SECONDARY EMISSION
SPECTRA
STARK EFFECT
WAVE FUNCTIONS