Graduate School in Nonlinear Science

Sponsored by the Danish Research Academy

MIDIT                               OFD                           CATS
Modelling, Nonlinear Dynamics       Optics and Fluid Dynamics     Chaos and Turbulence Studies
and Irreversible Thermodynamics     Risø National Laboratory      Niels Bohr Institute and 
Technical University of Denmark     Building 128                  Department of Chemistry
Building 321                        P.O. Box 49                   University of Copenhagen 
DK-2800 Lyngby                      DK-4000 Roskilde              DK-2100 Copenhagen Ø
Denmark                             Denmark                       Denmark


by Andrey Sukhorukov
Optical Sciences Centre
Australian National University
Canberra, Australia

MIDIT-seminar 465

Thursday October 7, 1999, 15.00 h
at MIDIT, IMM Building 305, room 027

Abstract:We introduce the concept of two-color multistep cascading for vectorial parametric wave mixing in optical media with quadratic (second-order or chi-2) nonlinear response, and present a full classification of the possible wave interaction processes. In particular, we demonstrate that light-guiding-light effects can be realized with quadratic spatial solitons. The effective waveguides are created by two-wave parametric solitons, which properties we describe with the help of the so-called `almost exact' analytical solutions.