Crossover from self-defocusing to discrete trapping in nonlinear waveguide arrays. Academic Article uri icon


  • We predict a sharp crossover from nonlinear self-defocusing to discrete self-trapping of a narrow Gaussian beam with the increase of the refractive index contrast in a periodic photonic lattice. We demonstrate experimentally nonlinear discrete localization of light with defocusing nonlinearity by single site excitation in LiNbO(3) waveguide arrays.

published proceedings

  • Opt Express

author list (cited authors)

  • Matuszewski, M., Rosberg, C. R., Neshev, D. N., Sukhorukov, A. A., Mitchell, A., Trippenbach, M., ... Kivshar, Y. S.

citation count

  • 57

complete list of authors

  • Matuszewski, Michal||Rosberg, Christian R||Neshev, Dragomir N||Sukhorukov, Andrey A||Mitchell, Arnan||Trippenbach, Marek||Austin, Michael W||Krolikowski, Wieslaw||Kivshar, Yuri S

publication date

  • January 2006