Soliton gating and switching in liquid crystal light valve

Piccardi, Armando; Alberucci, Alessandro; Bortolozzo, Umberto; Residori, Stefania; Assanto, Gaetano
February 2010
Applied Physics Letters;2/15/2010, Vol. 96 Issue 7, p071104
Academic Journal
Using a photoconductive light valve with nematic liquid crystals, we introduce a versatile platform for the excitation and routing of spatial optical solitons, with external beams controlling the whereabouts of the underlying all-optically induced waveguides and their spatial dynamics. Using this all-optical control of soliton trajectory, we demonstrate a NOR gate, an XNOR, and a Boolean half-adder.


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