Abstract

The possibility of controlling discrete diffraction and refraction in a multiband waveguide array by periodic waveguide bending is theoretically demonstrated. Resonance effects, leading to the enhancement or inhibition of discrete diffraction, are found and related to the quantum analog of field-induced n-photon resonances in semiconductor superlattices. A very distinct behavior for light refraction is found for odd or even resonances. In particular, for even resonances, the two-band behavior of the straight binary array is quenched, resulting in the inhibition of double refraction.

© 2006 Optical Society of America

Discrete negative refraction in photonic crystal waveguide arrays

Andrea Locatelli, Matteo Conforti, Daniele Modotto, and Costantino De Angelis
Opt. Lett. 31(9) 1343-1345 (2006)

Imaging of Bloch oscillations in erbium-doped curved waveguide arrays

N. Chiodo, G. Della Valle, R. Osellame, S. Longhi, G. Cerullo, R. Ramponi, P. Laporta, and U. Morgner
Opt. Lett. 31(11) 1651-1653 (2006)

Diffraction control in periodically curved two-dimensional waveguide arrays

Ivan L. Garanovich, Alexander Szameit, Andrey A. Sukhorukov, Thomas Pertsch, Wieslaw Krolikowski, Stefan Nolte, Dragomir Neshev, Andreas Tuennermann, and Yuri S. Kivshar
Opt. Express 15(15) 9737-9747 (2007)

Subwavelength diffraction control and self-imaging in curved plasmonic waveguide arrays

G. Della Valle and S. Longhi
Opt. Lett. 35(5) 673-675 (2010)

Rectification of light refraction in curved waveguide arrays

Stefano Longhi
Opt. Lett. 34(4) 458-460 (2009)