Extra ion feature of Thomson scattered light in the interaction of a 600 ps laser with helium gas jet
| Autor: | Fabien Dorchies, E. de Wispelaere, Ph. Mounaix, F. Amiranoff, Stefan Hüller, Victor Malka, A. Modena |
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| Přispěvatelé: | Laboratoire d'optique appliquée (LOA), École Nationale Supérieure de Techniques Avancées (ENSTA Paris)-École polytechnique (X)-Centre National de la Recherche Scientifique (CNRS), Laboratoire pour l'utilisation des lasers intenses (LULI), Université Pierre et Marie Curie - Paris 6 (UPMC)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-École polytechnique (X)-Centre National de la Recherche Scientifique (CNRS), Centre de Physique Théorique [Palaiseau] (CPHT), Centre National de la Recherche Scientifique (CNRS)-École polytechnique (X), École polytechnique (X)-Centre National de la Recherche Scientifique (CNRS) |
| Rok vydání: | 2003 |
| Předmět: |
Electron density
Plasma parameters Thomson scattering chemistry.chemical_element helium plasma light propagation Brillouin spectra light scattering 7. Clean energy 01 natural sciences Light scattering plasma waves 010305 fluids & plasmas law.invention symbols.namesake [PHYS.PHYS.PHYS-PLASM-PH]Physics [physics]/Physics [physics]/Plasma Physics [physics.plasm-ph] Physics::Plasma Physics law 0103 physical sciences backscatter Rayleigh scattering plasma production by laser 010306 general physics Helium Physics laser beam effects Condensed Matter Physics Laser Wavelength chemistry symbols PACS 52.50.Jm 52.35.-g 52.25.Os 52.38.Bv Atomic physics |
| Zdroj: | Physics of Plasmas Physics of Plasmas, American Institute of Physics, 2003, 10 (2), pp.495. ⟨10.1063/1.1535417⟩ Physics of Plasmas, 2003, 10 (2), pp.495. ⟨10.1063/1.1535417⟩ |
| ISSN: | 1089-7674 1070-664X |
| DOI: | 10.1063/1.1535417 |
| Popis: | International audience; The interaction of a 600 ps laser pulse at 0.53 μm wavelength with helium gas jet with an electron density of 8×10^19 cm^−3 has been studied. In this experiment the plasma parameters for density and temperature were well-defined via time-resolved Thomson scattering. Ion Thomson scattering measurements at 45° show two extra satellites which correspond to the rescattering of the Brillouin backscattered light off the thermal ion acoustic waves. Analysis of the relative amplitudes of these satellites gives a very high value of 65% of the instantaneous reflectivity at its maximum. Theoretical spectra are in good agreement with the experimental ones. |
| Databáze: | OpenAIRE |
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