Propagation of twin laser pulses in air and concatenation of plasma strings produced by femtosecond infrared filaments
| Autor: | Michel Franco, G. Méchain, Arnaud Couairon, Bernard Prade, André Mysyrowicz, Stylianos Tzortzakis, B. Lamouroux |
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| Přispěvatelé: | Centre de Physique Théorique [Palaiseau] (CPHT), Centre National de la Recherche Scientifique (CNRS)-École polytechnique (X), Laboratoire d'optique appliquée (LOA), École Nationale Supérieure de Techniques Avancées (ENSTA Paris)-École polytechnique (X)-Centre National de la Recherche Scientifique (CNRS) |
| Jazyk: | angličtina |
| Rok vydání: | 2003 |
| Předmět: |
PACS: 42.65.Sf
42.25.Bs 42.65.Jx 52.38.Hb Electron density Materials science Photoionization Ultrashort laser pulses 01 natural sciences Femtosecond filamentation law.invention 010309 optics Protein filament Optics law 0103 physical sciences Electrical and Electronic Engineering Physical and Theoretical Chemistry 010306 general physics [PHYS.PHYS.PHYS-OPTICS]Physics [physics]/Physics [physics]/Optics [physics.optics] business.industry Plasma Laser Atomic and Molecular Physics and Optics Electronic Optical and Magnetic Materials Pulse (physics) Femtosecond business Ultrashort pulse |
| Zdroj: | Optics Communications Optics Communications, Elsevier, 2003, 225 (1), pp.177-192. ⟨10.1016/j.optcom.2003.07.011⟩ |
| ISSN: | 0030-4018 |
| DOI: | 10.1016/j.optcom.2003.07.011⟩ |
| Popis: | International audience; Two consecutive ultrashort laser pulses separated by 100 fs and polarized in orthogonal directions are shown to form a long femtosecond filament that connects both filaments created independently by each pulse from the interplay between photoionization and self-focusing. Measurements of the electron density generated by photoionization of air show that this connection is obtained for a very specific time delay between the pulses. A strong shortening of one of the pulses is associated to this connection of plasma channels. This phenomenon is modeled via numerical simulations of the propagation and interaction of the pulses. |
| Databáze: | OpenAIRE |
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