Strongly Directed Electron Emission in Non-Sequential Double Ionization of Ne by Intense Laser Pulses
Double ionization of Ne by 25 fs, 1.0 PW cm-2 laser pulses has been explored in a kinematically complete experiment using a 'reaction microscope'. Electrons are found to be emitted into a narrow cone along the laser polarization (ε), much more confined than for single ionization, with a broad maximum in their energy distribution along ε. Correlated momentum spectra show both electrons being ejected into the same hemisphere, in sharp contrast to predictions based on field-free (e, 2e) recollision dynamics, but in overall agreement with recent semiclassical calculations for He.
R. Moshammer and J. H. Ullrich and B. Feuerstein and D. Fischer and A. Dorn and C. D. Schroter and J. R. Crespo Lopez-Urrutia and C. Hohr and H. Rottke and C. Trump and M. Wittmann and G. Korn and K. R. Hoffmann and W. Sandner, "Strongly Directed Electron Emission in Non-Sequential Double Ionization of Ne by Intense Laser Pulses," Journal of Physics B: Atomic, Molecular and Optical Physics, vol. 36, no. 6, pp. L113-L119, Institute of Physics - IOP Publishing, Mar 2003.
The definitive version is available at http://dx.doi.org/10.1088/0953-4075/36/6/101
Keywords and Phrases
Electron Tunneling; Ionization; Laser Pulses; Microscopes; Neon; Laser Fields; Electron Emission
International Standard Serial Number (ISSN)
Article - Journal
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