https://doi.org/10.1051/epjconf/201816702002
Laser contrast and other key parameters enhancing the laser conversion efficiency in ion acceleration regime
Dipartimento di Scienze Fisiche, MIFT, Università di Messina, V.le F.S. D’Alcontres 31, 98166 S. Agata, Messina, Italy
Corresponding author: lorenzo.torrisi@unime.it
Published online: 9 January 2018
Measurements of ion acceleration in plasma produced by fs lasers at intensity of the order of 1018 W/cm2 have been performed in different European laboratories. The forward emission in target-normal-sheath-acceleration (TNSA) regime indicated that the maximum energy is a function of the laser parameters, of the irradiation conditions and of the target properties.In particular the laser intensity and contrast play an important role to maximize the ion acceleration enhancing the conversion efficiency. Also the use of suitable prepulses, focal distances and polarized laser light has important roles. Finally the target composition, surface, geometry and multilayered structure, permit to enhance the electric field driving the forward ion acceleration.Experimental measurements will be reported and discussed.
© The Authors, published by EDP Sciences, 2018
This is an Open Access article distributed under the terms of the Creative Commons Attribution License 4.0, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (http://creativecommons.org/licenses/by/4.0/).
