Picture of two heads

Open Access research that challenges the mind...

The Strathprints institutional repository is a digital archive of University of Strathclyde research outputs. Strathprints provides access to thousands of Open Access research papers by University of Strathclyde researchers, including those from the School of Psychological Sciences & Health - but also papers by researchers based within the Faculties of Science, Engineering, Humanities & Social Sciences, and from the Strathclyde Business School.

Discover more...

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

[img]
Preview
PDF (strathprints006473.pdf)
strathprints006473.pdf

Download (208kB) | Preview

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.