Self-similar collapse and blow up of laser beams in nonlinear Kerr media-Revisited
Artikel i vetenskaplig tidskrift, 2011

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.

Ring-shaped beams

pulses

Beam blow up

Beam collapse

Författare

Tobias Hansson

Chalmers, Rymd- och geovetenskap, Icke-linjär elektrodynamik

Dan Anderson

Chalmers, Rymd- och geovetenskap, Icke-linjär elektrodynamik

Mats Desaix

Chalmers

Mietek Lisak

Chalmers, Rymd- och geovetenskap, Icke-linjär elektrodynamik

Optics Communications

0030-4018 (ISSN)

Vol. 284 13 3422-3427

Ämneskategorier

Fysik

DOI

10.1016/j.optcom.2011.03.013

Mer information

Senast uppdaterat

2018-09-10