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Self-similar collapse and blow up of laser beams in nonlinear Kerr media-Revisited

Tobias Hansson (Institutionen för rymd- och geovetenskap, Icke-linjär elektrodynamik) ; Dan Anderson (Institutionen för rymd- och geovetenskap, Icke-linjär elektrodynamik) ; Mats Desaix ; Mietek Lisak (Institutionen för rymd- och geovetenskap, Icke-linjär elektrodynamik)
Optics Communications (0030-4018). Vol. 284 (2011), 13, p. 3422-3427.
[Artikel, refereegranskad vetenskaplig]

Some features of the blow up and collapse phenomena characteristic of the focusing nonlinear Schrodinger equation are discussed. Particular attention is given to recently found solutions describing self-similar collapse in the form of ring-shaped structures. The characteristic parameters of such collapsing rings are found and particular single-humped initial conditions giving rise to ring formation are also discussed. The possibility of self-similarly collapsing beams with parabolic intensity profiles is investigated and used to infer the blow up distance of initially Gaussian beams. The result is shown to be in good agreement with previous empirical results for the blow up distance. (C) 2011 Elsevier B.V. All rights reserved.

Nyckelord: Beam collapse, Beam blow up, Ring-shaped beams, pulses

Denna post skapades 2011-06-23. Senast ändrad 2016-03-22.
CPL Pubid: 142374


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Institutioner (Chalmers)

Institutionen för rymd- och geovetenskap, Icke-linjär elektrodynamik (2010-2012)



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Nonlinear Theory of Partially Coherent Optical Waves