We demonstrate, both experimentally and theoretically, excitation-dependent self-bending of spatial solitons in nematic liquid crystals. The observed deflection is explained by nonlinear changes in walk-off, as induced by the rotation of the optic axis via power-driven reorientation.
Piccardi A, Alberucci A, & Assanto G (2010). Soliton self-deflection via power-dependent walk-off. APPLIED PHYSICS LETTERS, 96(6) [10.1063/1.3313932].