Premium
Ion acceleration from aluminium plasma generated by a femtosecond laser in different conditions
Author(s) -
Torrisi Lorenzo,
Rosinski Marcin,
Terwinska Dominika,
Tchorz Przemyslaw,
Cutroneo Mariapompea,
Torrisi Alfio
Publication year - 2020
Publication title -
contributions to plasma physics
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.531
H-Index - 47
eISSN - 1521-3986
pISSN - 0863-1042
DOI - 10.1002/ctpp.201900187
Subject(s) - laser , ion , materials science , femtosecond , plasma , atomic physics , kinetic energy , irradiation , optics , acceleration , physics , nuclear physics , classical mechanics , quantum mechanics
Non‐equilibrium plasma was obtained by irradiating Al foils in vacuum with a femtosecond (fs) laser at intensities of the order of 10 18 W/cm 2 . Protons and other light ions were accelerated in the forward direction by using the target‐normal‐sheath acceleration regime. Time‐of‐flight technique was employed to measure the ions' kinetic energy using SiC detectors placed at known distances and angles. The ion acceleration was monitored under different conditions of laser focal position, laser pulse energy, and laser contrast. The target was irradiated using different thicknesses and anti‐reflecting graphene films. By optimizing the laser parameters, irradiation conditions, and target properties, it was possible to accelerate up to 2.3 MeV per charge state, as will be presented and discussed.