Spindler, Gerhard und Paunescu, Gabriela (2008) Multifilamentation of femtosecond laser pulses propagating in turbulent air near the ground. Applied Physics B, 96 (1), Seiten 185-191. Springer Berlin / Heidelberg. doi: [10.1007/s00340-009-3409-z]. ISSN 0946-2171 (Print) 1432-0649 (Online).
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Kurzfassung
The propagation of femtosecond laser pulses in turbulent air near the ground is analyzed. Confining to a power regime distinctly above the critical power for self-focusing, i.e. , and concentrating on initial peak intensities around , the onset and early evolution of multiple filaments are addressed. Making use of the turbulence phase-screen method, numerical simulations of the pulse propagation indicate that turbulence fields with spatial scales below 6 mm are able to induce the onset of multifilamentation. An analytical linear plane wave perturbation model of the underlying modulation instability of the pulse front is introduced in support of the computational results. By this means, insight into the amplification of an initial perturbation of the pulse front from the point of view of the spatial frequency domain is given.
elib-URL des Eintrags: | https://elib.dlr.de/56048/ | ||||||||||||
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Dokumentart: | Zeitschriftenbeitrag | ||||||||||||
Titel: | Multifilamentation of femtosecond laser pulses propagating in turbulent air near the ground | ||||||||||||
Autoren: |
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Datum: | 7 November 2008 | ||||||||||||
Erschienen in: | Applied Physics B | ||||||||||||
Referierte Publikation: | Ja | ||||||||||||
Open Access: | Nein | ||||||||||||
Gold Open Access: | Nein | ||||||||||||
In SCOPUS: | Nein | ||||||||||||
In ISI Web of Science: | Ja | ||||||||||||
Band: | 96 | ||||||||||||
DOI: | [10.1007/s00340-009-3409-z] | ||||||||||||
Seitenbereich: | Seiten 185-191 | ||||||||||||
Herausgeber: |
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Verlag: | Springer Berlin / Heidelberg | ||||||||||||
Name der Reihe: | Lasers and Optics | ||||||||||||
ISSN: | 0946-2171 (Print) 1432-0649 (Online) | ||||||||||||
Status: | veröffentlicht | ||||||||||||
Stichwörter: | Femtosecond Pulse Laser, Propagation, Filamentation, Air Turbulence, spatial solitons, numerical simulation | ||||||||||||
HGF - Forschungsbereich: | Verkehr und Weltraum (alt) | ||||||||||||
HGF - Programm: | Luftfahrt | ||||||||||||
HGF - Programmthema: | Drehflügler (alt) | ||||||||||||
DLR - Schwerpunkt: | Luftfahrt | ||||||||||||
DLR - Forschungsgebiet: | L - keine Zuordnung | ||||||||||||
DLR - Teilgebiet (Projekt, Vorhaben): | L - Laserforschung und -technologie (alt) | ||||||||||||
Standort: | Stuttgart | ||||||||||||
Institute & Einrichtungen: | Institut für Technische Physik | ||||||||||||
Hinterlegt von: | Spindler, Dr.rer.nat. Gerhard | ||||||||||||
Hinterlegt am: | 20 Jul 2009 21:34 | ||||||||||||
Letzte Änderung: | 15 Jan 2010 00:25 |
Verfügbare Versionen dieses Eintrags
- Multifilamentation of femtosecond laser pulses propagating in turbulent air near the ground. (deposited 20 Jul 2009 21:34) [Gegenwärtig angezeigt]
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