Collimated protons accelerated from an overdense gas jet irradiated by a 1 µm wavelength high-intensity short-pulse laser
- Univ. Paris-Saclay (France); Sorbonne Univ., Paris (France); Inst. of Applied Physics, Nizhny Novgorod (Russia); Light Stream Labs LLC., Sunnyvale, CA (United States)
- Univ. de Lisboa (Portugal). Inst. Superior Técnico, GoLP/Inst. de Plasmas e Fusão Nuclear
- Univ. Paris-Saclay (France); Sorbonne Univ., Paris (France); Heinrich-Heine Univ., Dusseldorf (Germany). Inst. fur Laser - und Plasmaphysik
- INRS-EMT, Varennes, QC (Canada)
- Univ. Bordeaux (France). Centre National de la Recherche Scientifique (CNRS), CEA, CELIA, Talence (France)
- CEA, DAM, DIF, Arpajon (France)
- Univ. Paris-Saclay (France); Sorbonne Univ., Paris (France); Inst. of Applied Physics, Nizhny Novgorod (Russia)
- Heinrich-Heine Univ., Dusseldorf (Germany). Inst. fur Laser - und Plasmaphysik
- Inst. of Applied Physics, Nizhny Novgorod (Russia)
We have investigated proton acceleration in the forward direction from a near-critical density hydrogen gas jet target irradiated by a high intensity (1018 W/cm2), short-pulse (5 ps) laser with wavelength of 1.054 μm. We observed the signature of the Collisionless Shock Acceleration mechanism, namely quasi-monoenergetic proton beams with small divergence in addition to the more commonly observed electron-sheath driven proton acceleration. The proton energies we obtained were modest (~MeV), but prospects for improvement are offered through further tailoring the gas jet density profile. Also, we observed that this mechanism is very robust in producing those beams and thus can be considered as a future candidate in laser-driven ion sources driven by the upcoming next generation of multi-PW near-infrared lasers.
- Research Organization:
- Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States)
- Sponsoring Organization:
- USDOE Office of Science (SC); Agence Nationale de la Recherché (ANR); European Union’s Horizon 2020; Ministry of Education and Science of the Russian Federation; Fonds de recherche du Québec – Nature et technologies (FRQNT); Natural Sciences and Engineering Research Council of Canada (NSERC); ComputeCanada; European Research Council (ERC); German Research Foundation (DFG); ARIEL
- Grant/Contract Number:
- AC52-07NA27344; 11-IDEX-0004-02; ANR-17-CE30-0026-Pinnacle; 654148 Laserlab-Europe; 14.Z50.31.0007; 174726, 2016-PR-189974; 435416; 267841
- OSTI ID:
- 1624346
- Journal Information:
- Scientific Reports, Vol. 7, Issue 1; ISSN 2045-2322
- Publisher:
- Nature Publishing GroupCopyright Statement
- Country of Publication:
- United States
- Language:
- English
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