TITLE

Hybrid proton acceleration scheme using relativistic intense laser light

AUTHOR(S)
Andreev, A. A.; Platonov, K. Yu.; Schnürer, M.; Prasad, R.; Ter-Avetisyan, S.
PUB. DATE
March 2013
SOURCE
Physics of Plasmas;Mar2013, Vol. 20 Issue 3, p033110
SOURCE TYPE
Academic Journal
DOC. TYPE
Article
ABSTRACT
Ion acceleration phenomena at relativistic intense laser interaction with thin foil targets are studied to find an efficient laser-target interaction concept at the conditions, where neither the ponderomotive pressure of the laser light nor the hot electron pressure is negligible. Particle in cell simulations and the analytical model are allowing to predict optimum laser-target parameters and suggesting a significant increase of proton energy if a hybrid proton acceleration scheme is used. In the proposed scenario, the laser polarisation is changed during the acceleration process: First with circularly polarised laser light the target is accelerated as a whole by the ponderamotive pressure, and then with linearly polarised laser light the electrons are heated which additionally increases the accelerating field. The calculations are in good agreement with experimental findings.
ACCESSION #
86447100

 

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