Open AccessOptical bistability in metal gap waveguide nanocavities
Author(s) -
Yun Shen,
Guo Ping Wang
Publication year - 2008
Publication title -
optics express
Language(s) - Uncategorized
Resource type - Journals
SCImago Journal Rank - 1.394
H-Index - 271
ISSN - 1094-4087
DOI - 10.1364/oe.16.008421
Subject(s) - optical bistability , surface plasmon polariton , bistability , optics , optical switch , materials science , waveguide , surface plasmon , optoelectronics , slot waveguide , nanoscopic scale , nonlinear optics , finite difference time domain method , optical power , nanophotonics , plasmon , photonics , silicon photonics , physics , nanotechnology , laser
Metal-dielectric nanocavities constructed by filling a piece of nonlinear optical material into metal gap waveguides are introduced for realizing optical bistability in nanodomain. Finite-difference time-domain simulation reveal that such a structure can realize optical bistable effect with much weaker operating light power in a nanoscale nonlinear medium. We attribute it to the enhancement of local field intensity and nanoscale confinement of surface plasmon polaritons. Our results verify a feasible way for constructing nanoscale optical logical gates, switches, and all-optical transistors etc. for high density integration of optical circuits.