Light induced angular steering via Floquet-Bloch band-tunneling in one-dimensional liquid crystalline photonic lattices

A. Fratalocchi, K. Rutkowska, M. Karpierz, G. Assanto

Opto-Electronics Rev. 15, 210-214 (2007)


We investigate all-optical Zener tunneling in electro-optically tunable arrays of identical channel waveguides in undoped nematic liquid crystals. By all-optically inducing a refractive acceleration, we demonstrate a novel technique for band-to-band tunneling, as well as a novel approach to light controlled steering and readdressing.