Light filaments without self-channeling

The propagation of intense 200 fs pulses in water reveals light filaments not sustained by static balance between Kerr-induced self-focusing and plasma-induced defocusing. Numerical calculations outline the occurrence of a possible scenario where filaments appear because of spontaneous reshaping of...

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Bibliographic Details
Published in:Physical review letters 2004-06, Vol.92 (25), p.253903.1-253903.4, Article 253903
Main Authors: DUBIETIS, Audrius, GAIZAUSKAS, Eugenijus, TAMOSAUSKAS, Gintaras, DI TRAPANI, Paolo
Format: Article
Language:English
Subjects:
Beam trapping, self-focusing and defocusing
self-phase modulation
Beam trapping, self-focusing, and thermal blooming
Exact sciences and technology
Fundamental areas of phenomenology (including applications)
Nonlinear optics
Optics
Physics
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Summary:The propagation of intense 200 fs pulses in water reveals light filaments not sustained by static balance between Kerr-induced self-focusing and plasma-induced defocusing. Numerical calculations outline the occurrence of a possible scenario where filaments appear because of spontaneous reshaping of the Gaussian input beam into a conical wave, driven by the requirement of maximum localization, maximum stationarity, and minimum nonlinear losses.
ISSN:0031-9007
1079-7114
DOI:10.1103/PhysRevLett.92.253903