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Comoving acceleration of overdense electron-positron plasma by colliding ultra-intense laser pulses

Edison Liang
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Abstract

Particle-in-cell (PIC) simulation results of sustained acceleration of electron-positron (e+e-) plasmas by comoving electromagnetic (EM) pulses are presented. When a thin slab of overdense e+e- plasma is irradiated with linear-polarized ultra-intense short laser pulses from both sides, the pulses are transmitted when the plasma is compressed to thinner than ~ 2 relativistic skin depths. A fraction of the plasma is then captured and efficiently accelerated by self-induced JxB forces. For 1 micron laser and 1021Wcm-2 intensity, the maximum energy exceeds GeV in a picosecond.

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Edison Liang. 2006-03-17. Comoving acceleration of overdense electron-positron plasma by colliding ultra-intense laser pulses. https://doi.org/10.1063/1.2193528

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