Ion acceleration from aluminium plasma generated by a femtosecond laser in different conditions

0522250 - ÚJF 2021 RIV DE eng J - Journal Article
Torrisi, L. - Rosinski, M. - Terwinska, D. - Tchórz, P. - Cutroneo, Mariapompea - Torrisi, Alfio
Ion acceleration from aluminium plasma generated by a femtosecond laser in different conditions.
Contributions to Plasma Physics. Roč. 60, č. 4 (2020), č. článku 201900187. ISSN 0863-1042. E-ISSN 1521-3986
R&D Projects: GA MŠMT LM2015056; GA ČR GA16-05167S
Institutional support: RVO:61389005
Keywords : aluminium target * femtosecond laser * ion acceleration * TNSA * SiC detector
OECD category: Fluids and plasma physics (including surface physics)
Impact factor: 1.563, year: 2020
Method of publishing: Limited access
https://doi.org/10.1002/ctpp.201900187

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.
Permanent Link: http://hdl.handle.net/11104/0308726