Subwavelength diffraction control and self-imaging in curved plasmonic waveguide arrays.
We study subwavelength light propagation in arrays of coupled metal-dielectric waveguides with a periodically curved axis and show analytically and numerically that subwavelength diffraction management, including self-imaging effects, can be achieved by a suitable engineering of the bending geometry.
Della Valle
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Dipartimento di Fisica and Istituto di Fotonica e Nanotecnologie del CNR, Politecnico di Milano, Piazza L. da Vinci 32, I-20133 Milano, Italy. giuseppe.dellavalle@polimi.it
Longhi
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