Nematicons and their angular steering
G. Assanto, C. Umeton, M. Peccianti, and A. Alberucci
J. Nonl. Opt. Phys. Mat. 15, 33-42 (2006)
Abstract:Extraordinary-wave nematicons can be launched and steered in angle by acting on the applied voltage. In specifically designed glass cells for planarly aligned nematic liquid crystals, their direction of propagation can be externally-controlled over angles as large as seven degrees.