Experimental study of laser plasma instabilities with broadband laser pulses at the GSI PHELIX laser facility
Year: 2025
Authors: Kanstein C., Wasser F., Zdhter S., Atzeni S., Benincasa G., Cristoforetti G., Erdogdu G., Fischer M., Gizzi L.A., Glize K., Grimm S.J., Hornung J., Hume E., Ktzster P., Kuschel S., Meffert T., Neufeld F., Neumayer P., Nguyen K.L., Theobald W., Winter., Woolsey N., Zarrouk K., Zhao X., Bagnoud., Roth M.
Autors Affiliation: Tech Univ Darmstadt, Inst Appl Phys, Hochschulstr 4a, D-64289 Darmstadt, Germany; Focused Energy GmbH, Tiefen See 45, D-64293 Darmstadt, Germany; Bingen Tech Univ Appl Sci, Berlinstr 109, D-55411 Bingen, Germany; CNR, INO, Intense Laser Irradiat Lab, Via G Moruzzi 1, I-56124 Pisa, Italy; Tech Univ Darmstadt, Inst Nucl Phys, Schlossgartenstr 9, D-64289 Darmstadt, Germany; STFC Rutherford Appleton Lab, Cent Laser Facil, Harwell Campus, Didcot OX11 0QX, England; GSI Helmholtzzentrum Schwerionenforsch GmbH, PHELIX, Plasma Phys, Planckstr 1, D-64291 Darmstadt, Germany; Univ York, York Plasma Inst, York YO10 5DQ, England; Goethe Univ Frankfurt, Inst Appl Phys, Max von Laue Str 1, D-60438 Frankfurt, Germany; Univ Rochester, Dept Mech Engn, 235 Hopeman Bldg, Rochester, NY 14627 USA.
Abstract: We present first experimental data obtained at the recently commissioned experimental platform to compare laser plasma instabilities (LPIs) driven by monochromatic and broad spectral bandwidth (approximate to 0.5%) laser pulses with a wavelength of around 527 nm. The evaluation of LPIs at 1015 W cm-2 is shown by utilizing a full aperture backscatter diagnostic and side scatter diagnostics. For a broad bandwidth, our study indicates a suppression of stimulated Brillouin back- and side scattering as well as of the two plasmon decay instability, but an increase of stimulated Raman side scattering. An increase in both temperature and numbers of hot electrons is also identified by direct and indirect measurements.
Journal/Review: PLASMA PHYSICS AND CONTROLLED FUSION
Volume: 67 (11) Pages from: 115027-1 to: 115027-10
More Information: The results presented in this manuscript are based on the experiment P-22-00006, which was performed at the target station HHT at the GSI Helmholtzzentrum fur Schwerionenforschung, Darmstadt (Germany) in the frame of FAIR Phase-0. This work has received funding by Focused Energy GmbH. Our research was partially supported by the EPSRC and First Light Fusion under the AMPLIFI Prosperity Partnership-EP/X025373/1, and by the Deutsche Forschungsgemeinschaft (DFG, German Research Foundation)-Project-ID 499256822-GRK 2891 ’Nuclear Photonics’. We acknowledge the support of the Vulcan dark period community support programme 24-2.KeyWords: laser plasma instabilities; laser-driven plasma; high bandwidth laser; inertial confinement fusionDOI: 10.1088/1361-6587/ae1871
