Femtosecond and picosecond ultraviolet laser filaments in air: experiments and simulations
| Autor: | Bernard Prade, Demetrios Anglos, A. Chiron, André Mysyrowicz, Michel Franco, S. D. Moustaizis, B. Lamouroux, Stylianos Tzortzakis |
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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), Foundation for Research and Technology Hellas, Institute of Electronic Structure and Laser |
| Jazyk: | angličtina |
| Rok vydání: | 2001 |
| Předmět: |
Materials science
medicine.disease_cause 01 natural sciences law.invention 010309 optics Optics Filamentation law Ionization Nonlinear guided waves 0103 physical sciences medicine Electrical and Electronic Engineering Physical and Theoretical Chemistry 010306 general physics [PHYS.PHYS.PHYS-OPTICS]Physics [physics]/Physics [physics]/Optics [physics.optics] business.industry nonlinear optics Nonlinear optics Laser Beam trapping Atomic and Molecular Physics and Optics Electronic Optical and Magnetic Materials Pulse (physics) filamentation Picosecond Femtosecond business Ultraviolet |
| Zdroj: | Optics Communications Optics Communications, Elsevier, 2001, 197 (1), pp.131-143. ⟨10.1016/S0030-4018(01)01443-2⟩ |
| ISSN: | 0030-4018 |
| DOI: | 10.1016/S0030-4018(01)01443-2⟩ |
| Popis: | Summarization: We report a study of the long-range self-guided propagation of intense femtosecond and picosecond UV laser pulses in air. Measurements of the laser beam profile along the propagation axis together with the ionization rate, the pulse temporal profile and power spectrum provide a comprehensive image of the UV filamentation process and its characteristics. Self-guiding is shown to subsist in both fs and ps cases, with a robust filament propagating over several meters in air. Stable filamentation is accompanied by an important restructuring of the pulse temporal profile. Complementary numerical simulations, using a three-dimension propagation code, are compared to the experimental results. The simulations reproduce most experimental observations, allowing for a better understanding of the phenomena involved in this unique propagation mode. Παρουσιάστηκε στο: Optics Communications |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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