Increased efficiency of ion acceleration by using femtosecond laser pulses at higher harmonic frequency

0439416 - FZÚ 2015 RIV US eng J - Článek v odborném periodiku
Psikal, J. - Klimo, Ondřej - Weber, Stefan A. - Margarone, Daniele
Increased efficiency of ion acceleration by using femtosecond laser pulses at higher harmonic frequency.
Physics of Plasmas. Roč. 21, č. 7 (2014), "073108-1"-"073108-6". ISSN 1070-664X. E-ISSN 1089-7674
Grant CEP: GA MŠMT ED1.1.00/02.0061; GA MŠMT EE.2.3.20.0087
Grant ostatní: ELI Beamlines(XE) CZ.1.05/1.1.00/02.0061; OP VK 2 LaserGen(XE) CZ.1.07/2.3.00/20.0087
Institucionální podpora: RVO:68378271
Klíčová slova: proton-beams * ultrathin targets * simulations * contrast * plasmas
Kód oboru RIV: BL - Fyzika plazmatu a výboje v plynech
Impakt faktor: 2.142, rok: 2014

The influence of laser frequency on laser-driven ion acceleration is investigated by means of two dimensional particle-in-cell simulations. When ultrashort intense laser pulse at higher harmonic frequency irradiates a thin solid foil, the target may become relativistically transparent for significantly lower laser pulse intensity compared with irradiation at fundamental laser frequency. The relativistically induced transparency results in an enhanced heating of hot electrons as well as increased maximum energies of accelerated ions and their numbers.
Trvalý link: http://hdl.handle.net/11104/0242701