Photoionization by an ultraintense laser field: Response of atomic xenon

Journal Article · Thu Apr 15 00:00:00 EDT 2010 · Physical Review. A

DOI:https://doi.org/10.1103/PHYSREVA.81.043417· OSTI ID:21408653

DiChiara, A D; Ghebregziabher, I; Waesche, J M; Stanev, T; Ekanayake, N; Barclay, L R; Wells, S J; Watts, A; Videtto, M; Mancuso, C A; Walker, B C ^[1]

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1. Department of Physics and Astronomy, University of Delaware, Newark, Delaware 19716 (United States)

We present energy- and angle-resolved photoionization from Xe in an ultrastrong laser field at 10{sup 19} W/cm{sup 2}. The observed yields are consistent with the tunneling ionization of Xe{sup 9+} to Xe{sup 24+}. However, energy and angle-resolved photoelectron spectra show differences for electrons whose final energies are above or below 0.5 MeV, which is approximately the ponderomotive energy at these intensities. Above 0.5 MeV, the observed photoelectron cutoff energy (between 1 and 1.35 MeV), photoelectron energy spectra, and the angle-resolved photoelectron azimuthal distributions agree with a model using tunneling ionization, multiple charge states, a classical relativistic continuum, and nonparaxial three-dimensional (3D) focused laser field. Below 0.5 MeV the yields and angular distributions observed indicate dynamics not included within a classical, single electron model of the interaction.

• OSTI ID: 21408653
• Journal Information: Physical Review. A, Vol. 81, Issue 4; Other Information: DOI: 10.1103/PhysRevA.81.043417; (c) 2010 The American Physical Society; ISSN 1050-2947
• Country of Publication: United States
• Language: English

Related Subjects

74 ATOMIC AND MOLECULAR PHYSICS
ANGULAR DISTRIBUTION
CHARGE STATES
ELECTRONS
ENERGY SPECTRA
INTERACTIONS
LASER RADIATION
MEV RANGE
PHOTOELECTRON SPECTROSCOPY
PHOTOIONIZATION
PONDEROMOTIVE FORCE
RELATIVISTIC RANGE
THREE-DIMENSIONAL CALCULATIONS
TUNNEL EFFECT
XENON
DISTRIBUTION
ELECTROMAGNETIC RADIATION
ELECTRON SPECTROSCOPY
ELEMENTARY PARTICLES
ELEMENTS
ENERGY RANGE
FERMIONS
FLUIDS
GASES
IONIZATION
LEPTONS
NONMETALS
RADIATIONS
RARE GASES
SPECTRA
SPECTROSCOPY