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    Please use this identifier to cite or link to this item: http://ir.lib.ncu.edu.tw/handle/987654321/50959

    Title: Design and analysis of metal/multi-insulator/metal waveguide plasmonic Bragg grating
    Authors: Chang,YJ
    Contributors: 光電科學與工程學系
    Date: 2010
    Issue Date: 2012-03-27 18:13:55 (UTC+8)
    Publisher: 國立中央大學
    Abstract: A metal/multi-insulator/metal waveguide plasmonic Bragg grating with a large dynamic range of index modulation is investigated analytically and numerically. Theoretical formalism of the dispersion relation for the present and general one-dimensional gratings is developed for TM waves in the vicinity of each stop band. Wide-band and narrow-band designs with their respective FWHM bandwidths of 173.4 nm and < 3.4 nm in the 1550 nm band using a grating length of < 16.0 mu m are numerically demonstrated. Time-average power vortexes near the silica-silicon interfaces are revealed in the stop band and are attributed to the contra-flow interaction and simultaneous satisfactions of the Bragg condition for the incident and backward-diffracted waves. An enhanced forward-propagating power is thus shown to occur over certain sections within one period due to the power coupling from the backward-diffracted waves. (C) 2010 Optical Society of America
    Relation: OPTICS EXPRESS
    Appears in Collections:[光電科學與工程學系] 期刊論文

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