期刊
PHYSICAL REVIEW LETTERS
卷 107, 期 14, 页码 -出版社
AMER PHYSICAL SOC
DOI: 10.1103/PhysRevLett.107.143004
关键词
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资金
- U.S. National Science Foundation
- U.S. Department of Energy
- Direct For Mathematical & Physical Scien
- Division Of Physics [1125844] Funding Source: National Science Foundation
We have studied electron emission from the H-2(+) ion by a circularly polarized laser pulse (800 nm, 6 x 10(14) W/cm(2)). The electron momentum distribution in the body fixed frame of the molecule is experimentally obtained by a coincident detection of electrons and protons. The data are compared to a solution of the time-dependent Schrodinger equation in two dimensions. We find radial and angular distributions which are at odds with the quasistatic enhanced ionization model. The unexpected momentum distribution is traced back to a complex laser-driven electron dynamics inside the molecule influencing the instant of ionization and the initial momentum of the electron.
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