Transverse electron momentum distribution in tunneling and over the barrier ionization by laser pulses with varying ellipticity

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作者：
I. A. Ivanov
A. S. Kheifets
J. E. Calvert
S. Goodall
X. Wang
Han Xu
A. J. Palmer
D. Kielpinski
I. V. Litvinyuk
R. T. Sang
机构：
[1] Center for Relativistic Laser Science,
[2] Institute for Basic Science,undefined
[3] Research School of Physics and Engineering,undefined
[4] The Australian National University,undefined
[5] School of Natural Sciences and Centre for Quantum Dynamics,undefined
[6] Griffith University,undefined
来源：
Scientific Reports | / 6卷
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摘要：
We study transverse electron momentum distribution in strong field atomic ionization driven by laser pulses with varying ellipticity. We show, both experimentally and theoretically, that the transverse electron momentum distribution in the tunneling and over the barrier ionization regimes evolves in a qualitatively different way when the ellipticity parameter describing polarization state of the driving laser pulse increases.
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