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3 November 2016 Active multiple plasmon-induced transparencies with detuned asymmetric multi-rectangle resonators
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The phenomenon of plasmon-induced transparency (PIT) is realized in surface plasmon polariton waveguide at the visible and near-infrared ranges. By adding one and two resonant cavities, the PIT peak(s) was (were) achieved due to destructive interference between the side-coupled rectangle cavity and the bus waveguide. The proposed structures were demonstrated by the finite element method. The simulation results showed that for three rectangle resonators system, not only can we manipulate each single PIT window, but also the double PIT windows simultaneously by adjusting one of the geometrical parameters of the system; for four rectangle resonators system, by changing the widths, the lengths and the refractive index of three cavities simultaneously, we would realize treble PIT peaks and induce an off-to-on PIT optical response. Our novel plasmonic structures and the findings pave the way for new design and engineering of highly integrated optical circuit such as nanoscale optical switching, nanosensor and wavelength-selecting nanostructure.
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Dongdong Liu, Jicheng Wang, and Jian Lu "Active multiple plasmon-induced transparencies with detuned asymmetric multi-rectangle resonators", Proc. SPIE 10028, Plasmonics II, 100280C (3 November 2016);

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