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Coulomb Potential Recapture Effect in Above-Barrier Ionization in Laser Pulses |
| WANG Bing-Bing1;LI Xiao-Feng1;FU Pan-Ming1;CHEN Jing2;LIU Jie2 |
| 1Laboratory of Optical Physics, Institute of Physics, Chinese Academy of Sciences, Beijing 100080
2Center for Nonlinear Studies, Institute of Applied Physics and Computational Mathematics, Beijing 100088 |
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| Cite this article: |
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WANG Bing-Bing, LI Xiao-Feng, FU Pan-Ming et al 2006 Chin. Phys. Lett. 23 2729-2732 |
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Abstract The Coulomb potential recapture effect in above-barrier ionization with ultrashort long-wavelength laser pulses is investigated theoretically by solving the one-dimensional time-dependent Schrödinger equation. We find that electrons can be recaptured with considerable possibility by the Coulomb potential near the end of the pulse though atoms are ionized almost completely within the first few half optical cycles. Therefore there is a high probability of the atom surviving after the pulse. We also check this process in the three-dimensional case and find that this kind of stabilization can still exist in three-dimensional atoms.
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| Keywords:
32.80.Rm
42.50.Hz
32.80.Fb
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Published: 01 October 2006
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| PACS: |
32.80.Rm
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(Multiphoton ionization and excitation to highly excited states)
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42.50.Hz
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(Strong-field excitation of optical transitions in quantum systems; multiphoton processes; dynamic Stark shift)
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32.80.Fb
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(Photoionization of atoms and ions)
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