Instabilities of higher-order parametric solitons : filamentation versus coalescence

Skryabin, Dmitry V. and Firth, William J. (1998) Instabilities of higher-order parametric solitons : filamentation versus coalescence. Physical Review E: Statistical Physics, Plasmas, Fluids, and Related Interdisciplinary Topics, 58 (2). R1252 -R1255. ISSN 1063-651X

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Abstract

We investigate stability and dynamics of higher-order solitary waves in quadratic media, which have a central peak and one or more surrounding rings. We show the existence of two qualitatively different behaviors. For positive phase mismatch the rings break up into filaments that move radially to the initial ring. For sufficient negative mismatches rings are found to coalesce with the central peak, forming a single oscillating filament.

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  Item type:	Article
  ID code:	6473
  Dates:	Date Event August 1998 Published
  Keywords:	stability, dynamics, solitary waves, quadratic media, oscillating filament, Plasma physics. Ionized gases, Physics, Physics and Astronomy(all), Mathematical Physics, Statistical and Nonlinear Physics, Condensed Matter Physics
  Subjects:	Science > Physics > Plasma physics. Ionized gases Science > Physics
  Department:	Faculty of Science > Physics
  Depositing user:	Miss Darcy Spiller
  Date deposited:	08 Jul 2008
  Last modified:	23 Sep 2021 03:28
  URI:	https://strathprints.strath.ac.uk/id/eprint/6473