Picture of scraped petri dish

Scrape below the surface of Strathprints...

Explore world class Open Access research by researchers at the University of Strathclyde, a leading technological university.

Explore

Two-dimensional front dynamics and spatial solitons in a nonlinear optical system

Ackemann, T. and Pesch, M. and Lange, W. and Gomila, D. and Firth, W.J. and Oppo, G.L. (2007) Two-dimensional front dynamics and spatial solitons in a nonlinear optical system. Physical Review Letters, 99. ISSN 0031-9007

Full text not available in this repository. (Request a copy from the Strathclyde author)

Abstract

Two-dimensional fronts and coarsening dynamics with a t1/2 power law are analyzed experimentally and theoretically in a nonlinear optical system of a sodium vapor cell with single-mirror feedback. Modifications of the t1/2 power law are observed in the vicinity of a modulational instability leading to the formation of spatial solitons of different sizes. The experimental and numerical observations give direct evidence for the locking of fronts as the mechanism of soliton formation. A phenomenological equation for the dynamics of the domain radius explains the observed behavior.