All-optical nonlinear switches based on Y-shaped plasmonic waveguides

Changjun Min; Georgios Veronis

doi:10.1117/12.861086

10 September 2010 All-optical nonlinear switches based on Y-shaped plasmonic waveguides

Changjun Min, Georgios Veronis

Proceedings Volume 7756, Active Photonic Materials III; 775612 (2010) https://doi.org/10.1117/12.861086
Event: SPIE NanoScience + Engineering, 2010, San Diego, California, United States

Abstract

We introduce extremely compact all-optical nonlinear switches based on Y-shaped plasmonic waveguides. We consider a Y-shaped structure, consisting of a subwavelength metal-dielectric-metal input waveguide branch connected to two metal-dielectric-metal output waveguide branches. The Y-shaped channel is embedded in a metallic film and filled with a Kerr nonlinear material. We show that such a device can be designed to function as a switch between the two output branches, controlled by the intensity of the incident light. We also show that the Y-shaped plasmonic structure can be used as a tunable optical splitter.

Citation Download Citation

Changjun Min and Georgios Veronis "All-optical nonlinear switches based on Y-shaped plasmonic waveguides", Proc. SPIE 7756, Active Photonic Materials III, 775612 (10 September 2010); https://doi.org/10.1117/12.861086

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KEYWORDS

Plasmonics

Switches

Nonlinear response

Refractive index

Waveguides

Plasmonic waveguides

Bistability

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