• Effects of saturation on optical bistability with coupled surface plasmons

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      https://www.ias.ac.in/article/fulltext/pram/037/04/0357-0362

    • Keywords

       

      Saturation; bistability; surface plasmon

    • Abstract

       

      We present exact numerical results for a symmetric layered medium (prism/Ag film/nonlinear dielectric/Ag film/prism) where the middle dielectric slab is assumed to have a saturation-type nonlinearity. We show bistable behaviour in the power dependence of the reflectivity ofp-polarized light under the condition when coupled surface modes are excited in the structure. Moreover, we study the effect of saturation on the bistable behaviour to show that multivalued character is inhibited by saturation effects. The field distributions corresponding to the minimum reflectivity states of the nonlinear structure are also presented.

    • Author Affiliations

       

      M B Pande1 S Dutta Gupta1

      1. School of Physics, University of Hyderabad, Hyderabad - 500 134, India
    • Dates

       
  • Pramana – Journal of Physics | News

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