We propose a scheme for an optical limiter and switch of the transmitted light intensity in an array of subwavelength metallic slits placed on a nonlinear Kerr-type dielectric substrate of finite thickness, where the geometrical parameters are designed for operation at telecom wavelengths. Our approach is based on the abrupt changes of the output light intensity observed in these systems near transmission minima.
© 2010 Optical Society of America
Optics at Surfaces
Original Manuscript: October 29, 2010
Revised Manuscript: November 1, 2010
Manuscript Accepted: November 10, 2010
Published: December 15, 2010
S. Carretero-Palacios, Alexander Minovich, Dragomir N. Neshev, Yuri S. Kivshar, F. J. Garcia-Vidal, L. Martin-Moreno, and Sergio G. Rodrigo, "Optical switching in metal-slit arrays on nonlinear dielectric substrates," Opt. Lett. 35, 4211-4213 (2010)