Recoil-Ion Momentum Distributions for Single and Double Ionization of Helium in Strong Laser Fields
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- 17 January 2000
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review Letters
- Vol. 84 (3) , 443-446
- https://doi.org/10.1103/physrevlett.84.443
Abstract
We have measured the momentum distributions of singly and doubly charged helium ions created in the focus of 220 fs, 800 nm laser pulses at intensities of . All ions are emitted strongly aligned along the direction of polarization of the light. We find the typical momenta of the ions to be 5–10 times larger than those of the ions and a two peak structure at the highest intensity.
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