A novel ultrafast all-optical switching based on metal-insulator-metal nanoplasmonic waveguide with a Kerr nonlinear resonator is proposed and investigated numerically. With the finite-difference time-domain simulations, it is demonstrated that an obvious optical bistability of the signal light appears by varying the control-light intensity, and an excellent switching effect is achieved. This bistability originates from the intensity-dependent change induced in the dielectric constant of Kerr nonlinear material filled in the nanodisk resonator. It is found that the proposed all-optical switching exhibits femtosecond-scale feedback time. (C) 2011 Optical Society of America
WOS标题词:
Science & Technology
; Physical Sciences
类目[WOS]:
Optics
研究领域[WOS]:
Optics
关键词[WOS]:
PLASMON-POLARITONS
; METAL
; FILTERS
; TRANSMISSION
; BISTABILITY
; MICROCAVITY
; CRYSTALS
; ARRAYS
; CAVITY
; FILMS
