期刊
PHYSICAL REVIEW LETTERS
卷 104, 期 4, 页码 -出版社
AMER PHYSICAL SOC
DOI: 10.1103/PhysRevLett.104.043005
关键词
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资金
- CNRS
- NSF
- Division Of Physics
- Direct For Mathematical & Physical Scien [0968866] Funding Source: National Science Foundation
We examine the nature and statistical properties of electron-electron collisions in the recollision process in a strong laser field. The separation of the double ionization yield into sequential and nonsequential components leads to a bell-shaped curve for the nonsequential probability and a monotonically rising one for the sequential process. We identify key features of the nonsequential process and connect our findings in a simplified model which reproduces the knee shape for the probability of double ionization with laser intensity and associated trends.
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