Phase dependence of electron acceleration in a tightly focused laser beam

Electron acceleration using a tightly focused ultraintensity laser beam is investigated numerically and strong phase dependence is found. The acceleration is periodic to the variety of the initial laser field phase, and the accelerated electrons are emitted in pulses of which the full width is the h...

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Veröffentlicht in:Physics of plasmas 2005-07, Vol.12 (7), p.073101-073101-5
Hauptverfasser: He, Xinkui, Li, R. X., Shuai, B., Ge, X. C., Xu, Z. Z.
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Sprache:eng
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Zusammenfassung:Electron acceleration using a tightly focused ultraintensity laser beam is investigated numerically and strong phase dependence is found. The acceleration is periodic to the variety of the initial laser field phase, and the accelerated electrons are emitted in pulses of which the full width is the half period of the laser field. When a 10 PW intense laser beam is used, the electron with energy less than 1 Mev can be accelerated up to energies about 1.4 GeV. The optimal initial condition for electron acceleration is found.
ISSN:1070-664X
1089-7674
DOI:10.1063/1.1938974