Non-Hermitian lattices with asymmetric couplings can steer light toward specific edges, producing the so-called skin effect. The authors show that when optical nonlinearity is added, this directed flow competes with self-trapping, giving rise to position-dependent thresholds and novel two dimensional “skin solitons”.
- Emmanouil T. Kokkinakis
- Ioannis Komis
- Konstantinos G. Makris
