Temporal and Angular Resolution of the Ionization-Induced Refraction of a Short Laser Pulse in Helium Gas
| Autor: | P. Chessa, Jean-Raphael Marques, G. Hamoniaux, Patrick Mora, Fabien Dorchies, François Amiranoff, E. de Wispelaere, Victor Malka |
|---|---|
| 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), Laboratoire d'optique appliquée (LOA), École Nationale Supérieure de Techniques Avancées (ENSTA Paris)-École polytechnique (X)-Centre National de la Recherche Scientifique (CNRS) |
| Rok vydání: | 1999 |
| Předmět: |
Femtosecond pulse shaping
Physics [PHYS.PHYS.PHYS-OPTICS]Physics [physics]/Physics [physics]/Optics [physics.optics] business.industry Physics::Optics General Physics and Astronomy Laser 01 natural sciences Refraction 010305 fluids & plasmas law.invention Pulse (physics) Lens (optics) Optics [PHYS.PHYS.PHYS-PLASM-PH]Physics [physics]/Physics [physics]/Plasma Physics [physics.plasm-ph] law Ionization 0103 physical sciences Physics::Atomic and Molecular Clusters Angular resolution Physics::Atomic Physics 010306 general physics business Ultrashort pulse |
| Zdroj: | Physical Review Letters Physical Review Letters, American Physical Society, 1999, 82 (3), pp.552. ⟨10.1103/PhysRevLett.82.552⟩ Physical Review Letters, 1999, 82 (3), pp.552. ⟨10.1103/PhysRevLett.82.552⟩ ResearcherID |
| ISSN: | 1079-7114 0031-9007 |
| DOI: | 10.1103/physrevlett.82.552 |
| Popis: | International audience; The refraction of a short and intense laser pulse focused in helium gas has been studied both experimentally and numerically. Using the time-frequency correspondence of a 120 fs laser pulse linearly chirped to 1.8 ps, the ionization-induced refraction is resolved both temporally and angularly. Two-dimensional numerical simulations are performed to calculate the laser propagation, from the focusing lens to the detector. With such a simulation, we get a quantitative agreement with the experiment, both for the refraction of the chirped pulse and for the ionization-induced blueshifted spectrum of the compressed pulse. |
| Databáze: | OpenAIRE |
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