1.
Phys Rev Lett
; 104(5): 053903, 2010 Feb 05.
Article
in English
| MEDLINE
| ID: mdl-20366764
ABSTRACT
We show how discrete solitary waves in one and two-dimensional waveguide arrays can be steered across the lattice via the introduction of a longitudinal periodic modulation of the nonlinear response. Through parametric energy transfer from the modulation to the solitary wave, the latter can increase its width and overcome the Peierls-Nabarro potential to propagate freely.