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Multifilamentation of femtosecond laser pulses induced by small-scale air turbulence

Paunescu, Gabriela and Spindler, Gerhard and Riede, Wolfgang and Schröder, Helmut and Giesen, Adolf (2009) Multifilamentation of femtosecond laser pulses induced by small-scale air turbulence. Applied Physics B, 96 (1), pp. 175-186. Springer Berlin / Heidelberg. ISSN 0946-2171 (Print); 1432-0649 (Online).

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We report on experimental and numerical investigations of femtosecond pulse propagation locally disturbed by the turbulent flow field of a hot-air blower. The experiments show that turbulence may shorten the collapse/filamentation distance and induce the onset of multiple filaments. This is supported by numerical simulations indicating that the high spatial frequency part of the turbulence spectrum plays a significant role.

Document Type:Article
Title:Multifilamentation of femtosecond laser pulses induced by small-scale air turbulence
AuthorsInstitution or Email of Authors
Paunescu, Gabrielagabriela.paunescu@dlr.de
Spindler, Gerhardgerhard.spindler@dlr.de
Riede, Wolfgangwolfgang.riede@dlr.de
Schröder, Helmuthelmut.schröder@dlr.de
Giesen, Adolfadolf.giesen@dlr.de
Date:June 2009
Journal or Publication Title:Applied Physics B
Refereed publication:Yes
In Open Access:No
In ISI Web of Science:Yes
Page Range:pp. 175-186
Publisher:Springer Berlin / Heidelberg
Series Name:Lasers and Optics
ISSN:0946-2171 (Print); 1432-0649 (Online)
Keywords:fs laser pulses, filament, multifilamentation, air turbulence
HGF - Research field:Aeronautics, Space and Transport
HGF - Program:Aeronautics
HGF - Program Themes:Aircraft Research
DLR - Research area:Aeronautics
DLR - Program:L AR - Aircraft Research
DLR - Research theme (Project):L - Laser Research and Technology
Location: Stuttgart
Institutes and Institutions:Institute of Technical Physics
Deposited By: Dr. Gabriela Paunescu
Deposited On:20 Jul 2009 21:32
Last Modified:07 Feb 2013 20:46

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