Channel Formation in Long Laser Pulse Interaction with a Helium Gas Jet
| Autor: | D. Puissant, C. Stenz, Stefan Hüller, M. Casanova, R. Bonadio, R. Haroutunian, C. Coulaud, François Amiranoff, E. de Wispelaere, A. Modena, Victor Malka, S. D. Baton |
|---|---|
| Přispěvatelé: | 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), Groupe de recherches sur l'énergétique des milieux ionisés (GREMI), Université d'Orléans (UO)-Centre National de la Recherche Scientifique (CNRS), Centre de Physique Théorique [Palaiseau] (CPHT), École polytechnique (X)-Centre National de la Recherche Scientifique (CNRS), Centre National de la Recherche Scientifique (CNRS)-École polytechnique (X) |
| Jazyk: | angličtina |
| Rok vydání: | 1997 |
| Předmět: |
Jet (fluid)
[PHYS.PHYS.PHYS-OPTICS]Physics [physics]/Physics [physics]/Optics [physics.optics] Materials science Physics::Optics General Physics and Astronomy chemistry.chemical_element Plasma Laser 01 natural sciences 010305 fluids & plasmas Pulse (physics) law.invention chemistry law [PHYS.PHYS.PHYS-PLASM-PH]Physics [physics]/Physics [physics]/Plasma Physics [physics.plasm-ph] 0103 physical sciences Refraction (sound) Plasma channel Electromagnetic electron wave Physics::Atomic Physics Atomic physics 010306 general physics Helium |
| Zdroj: | Physical Review Letters Physical Review Letters, 1997, 79 (16), pp.2979. ⟨10.1103/PhysRevLett.79.2979⟩ ResearcherID Physical Review Letters, American Physical Society, 1997, 79 (16), pp.2979. ⟨10.1103/PhysRevLett.79.2979⟩ |
| ISSN: | 0031-9007 1079-7114 |
| DOI: | 10.1103/PhysRevLett.79.2979⟩ |
| Popis: | International audience; Experimental realization of an electron density channel created by a low intensity laser in a helium gas jet is presented. The long (2.5 mm) plasma channel is fully ionized and thus prevents undesirable refraction effects for propagation and guiding of a subsequent high intensity laser pulse. The channel parameters are easily controlled and well suited for laser guiding. The radial plasma expansion and the temperature evolution have been measured and compared to hydrodynamic simulations which show that the plasma expansion is governed by a thermal wave during the laser pulse. |
| Databáze: | OpenAIRE |
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