Selective optical-optical switching for planar plasmonic waveguides and nodes.
Two nodes are studied as means to perform selective optical-optical switching of four planar thin surface plasmon waveguides by interfering TEM(10), TEM(01), and TEM(00) light beams incident upon a node. One node uses a flat-apex pyramidal reflector to reflect the incident light toward the waveguides' ends. An alternative node is a simple square aperture, which couples surface plasmons through light diffraction at the aperture's edges. Numerical calculations predict switching contrast, coupling efficiencies, and cross-talk between waveguides. Individually turned-off waveguides are shown to have their coupled surface plasmons attenuated by at least -10 dB and up to -21 dB.
Ultrafast Optics and Nanophotonics Laboratory, Department of Electrical and Computer Engineering, University of Alberta, Edmonton, Alberta, Canada. mquong@ualberta.ca
Michael C
MC
Quong
Abdulhakem Y
AY
Elezzabi
D003198:Computer Simulation; D017076:Computer-Aided Design; D004867:Equipment Design; D019544:Equipment Failure Analysis; D008027:Light; D008962:Models, Theoretical; D055095:Optics and Photonics / Q000295:instrumentation*; D012542:Scattering, Radiation; D012815:Signal Processing, Computer-Assisted / Q000295:instrumentation*; D020349:Surface Plasmon Resonance / Q000295:instrumentation*; D013685:Telecommunications / Q000295:instrumentation*