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Author Moslemi, F. ♦ Jamshidi-Ghaleh, K.
Source United States Department of Energy Office of Scientific and Technical Information
Content type Text
Language English
Subject Keyword CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS ♦ CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY ♦ CRYSTAL STRUCTURE ♦ CRYSTALS ♦ DEFECTS ♦ DIAGRAMS ♦ DIELECTRIC MATERIALS ♦ ELECTRIC FIELDS ♦ LAYERS ♦ NANOCOMPOSITES ♦ NANOPARTICLES ♦ NONLINEAR PROBLEMS ♦ ONE-DIMENSIONAL CALCULATIONS ♦ REFRACTIVE INDEX ♦ SPECTRA ♦ SWITCHES ♦ TRANSFER MATRIX METHOD
Abstract A one-dimensional photonic crystal structure with a nonlinear metal-dielectric nanocomposite defect layer is proposed to control the optical bistability (OB) of the transmitted wave by tuning the externally applied dc electric field. Using the transfer matrix method for dielectric layers and solving the Helmholtz nonlinear equation in the nonlinear composite layer, the linear transmittance spectrum and the nonlinear transmission curve are illustrated graphically for different applied fields. A field-dependent defect mode is observed in the linear transmittance spectrum. Consequently, the OB switch-up and -down thresholds can be manipulated via the applied field intensity. Due to the field dependence of composite layer refractive index, the physical response of the observation is the dynamical shifting of the defect mode. Moreover, it is shown that the volume fraction, shape, and type of the embedded nanoparticles as well as the kind of the dielectric host have large influences on the OB threshold. The proposed structure has significant potential applications in optical integrated devices.
ISSN 00218979
Educational Use Research
Learning Resource Type Article
Publisher Date 2016-03-07
Publisher Place United States
Journal Journal of Applied Physics
Volume Number 119
Issue Number 9


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