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- Title
Laser wakefield bubble regime acceleration of electrons in a preformed non uniform plasma channel.
- Authors
Magesh Kumar, K.K.; Tripathi, V.K.
- Abstract
A model of bubble regime electron acceleration by an intense laser pulse in non uniform plasma channel is developed. The plasma electrons at the front of the pulse and slightly off the laser axis in the plasma channel, experience axial and radial ponderomotive and space charge forces, creating an electron evacuated non uniform ion bubble. The expelled electrons travel along the surface of the bubble and reach the stagnation point, forming an electron sphere of radius re. The electrons of this sphere are pulled into the ion bubble and are accelerated to high energies. The Lorentz boosted frame enabled us to calculate energy gain of a test electron inside the bubble.
- Subjects
LASER beams; BUBBLES; ELECTRON accelerators; PONDEROMOTIVE force; SPACE charge; PLASMA gases; LORENTZ force; STAGNATION point
- Publication
Laser & Particle Beams, 2012, Vol 30, Issue 4, p575
- ISSN
0263-0346
- Publication type
Article
- DOI
10.1017/S0263034612000547