We study light propagation in nanoscale periodic structures composed of dielectric and metal in the visible range. We demonstrate that diffraction can be tailored both in magnitude and in sign by varying the geometric features of the waveguides. Diffraction management on a subwavelength scale is demonstrated by numerical solution of Maxwell equations in the frequency domain.
© 2008 Optical Society of America
Original Manuscript: June 25, 2008
Revised Manuscript: August 27, 2008
Manuscript Accepted: October 7, 2008
Published: November 13, 2008
Matteo Conforti, Massimiliano Guasoni, and Costantino De Angelis, "Subwavelength diffraction management," Opt. Lett. 33, 2662-2664 (2008)