Using mW light beams to generate spatial solitons in nematic liquid crystals, all-optical switching/logic can be performed on a signal launched in the soliton-induced waveguides. Through the collisional behavior of solitons in a nonlocal medium, the signal can be steered in angle and output position. A power-dependent X junction, AND, and NOR gates are demonstrated. (C) 2002 American Institute of Physics.
Peccianti, M., Conti, C., Assanto, G., De Luca, A., Umeton, C. (2002). All-optical switching and logic gating with spatial solitons in liquid crystals RID F-7127-2011. APPLIED PHYSICS LETTERS, 81(18), 3335-3337 [10.1063/1.1519101].