Rectification of light refraction in curved waveguide arrays.
An "optical ratchet" for discretized light in photonic lattices, which enables observing rectification of light refraction at any input beam conditions, is theoretically presented, and a possible experimental implementation based on periodically curved zigzag waveguide arrays is proposed.
Longhi
Stefano
S
Dipartimento di Fisica, Istituto di Fotonica e Nanotecnologie del CNR Politecnico di Milano,Piazza L. da Vinci, 32 I-20133 Milano, Italy. longhi@fisi.polimi.it