Abstract
We investigate the effect of nonlinearity on beam dynamics in parity-time () symmetric potentials. We show that a novel class of one- and two-dimensional nonlinear self-trapped modes can exist in optical synthetic lattices. These solitons are shown to be stable over a wide range of potential parameters. The transverse power flow within these complex solitons is also examined.
- Received 1 September 2007
DOI:https://doi.org/10.1103/PhysRevLett.100.030402
©2008 American Physical Society