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Optics Express

Optics Express

  • Editor: C. Martijn de Sterke
  • Vol. 16, Iss. 12 — Jun. 9, 2008
  • pp: 8421–8426

Optical bistability in metal gap waveguide nanocavities

Yun Shen and Guo Ping Wang  »View Author Affiliations

Optics Express, Vol. 16, Issue 12, pp. 8421-8426 (2008)

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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.

© 2008 Optical Society of America

OCIS Codes
(190.1450) Nonlinear optics : Bistability
(230.7370) Optical devices : Waveguides
(240.6680) Optics at surfaces : Surface plasmons
(260.3910) Physical optics : Metal optics

ToC Category:
Nonlinear Optics

Original Manuscript: April 16, 2008
Revised Manuscript: May 13, 2008
Manuscript Accepted: May 13, 2008
Published: May 23, 2008

Yun Shen and Guo Ping Wang, "Optical bistability in metal gap waveguide nanocavities," Opt. Express 16, 8421-8426 (2008)

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