The propagation properties of transverse localized structures are studied experimentally and numerically, showing that their free-space behavior is determined by the features acquired during the nonlinear light–matter interaction at their origin. For a Kerr-like nonlinearity in the optical loop, localized structures show a focalization followed by the formation of a local minimum of the intensity, these features reappearing outside the loop in the near-field region of their free-space propagation.
© 2008 Optical Society of America
Diffraction and Gratings
Original Manuscript: April 11, 2008
Revised Manuscript: September 11, 2008
Manuscript Accepted: October 7, 2008
Published: November 14, 2008
U. Bortolozzo, F. Haudin, and S. Residori, "Diffraction properties of optical localized structures," Opt. Lett. 33, 2698-2700 (2008)