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  • Title: Color-tuning and switching optical transport through CdS hybrid plasmonic waveguide.
    Author: Fang Z, Huang S, Lin F, Zhu X.
    Journal: Opt Express; 2009 Oct 26; 17(22):20327-32. PubMed ID: 19997260.
    Abstract:
    We report the color-tuning and switching optical transport characters of CdS hybrid plasmonic waveguide by using near-field optical microscopy. The guided photoluminescence spectra under various waveguide lengths demonstrate a spectroscopic red-shift for the part of CdS nanoribbon placed on the sapphire substrate and an energy compensation at Ag film. Surface plasmon polariton leakage and radiation are explored by near-field characterizations. Finite difference time domain simulations have good agreement with the experimental observations of subwavelength confinement and propagation. With a strong end facet emission, the suggested hybrid plasmonic waveguide can serve as a color-changeable optical nanosource in integrated photonic devices.
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