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    National Tsing Hua University Institutional Repository > 理學院 > 物理系 > 期刊論文 >  An ultrabroad terahertz bandpass filter based on multiple-resonance excitation of a composite metamaterial

    Please use this identifier to cite or link to this item: http://nthur.lib.nthu.edu.tw/dspace/handle/987654321/84027

    Title: An ultrabroad terahertz bandpass filter based on multiple-resonance excitation of a composite metamaterial
    Authors: Yi-Ju Chiang;Chan-Shan Yang;Ci-Ling Pan;Ta-Jen Yen
    教師: 潘犀靈
    Date: 2011
    Publisher: American Institute of Physics
    Relation: Applied Physics Letters, American Institute of Physics, Vol. 99, No. 19, November 7, 2011, at. 191909
    Keywords: Metamaterials
    Bandpass filters
    Magnetic resonance
    Electric currents
    Dielectric thin films
    Abstract: We experimentally present an ultrabroad terahertz (THz) bandpass filter based on a composite metamaterial (CMM) by exciting its multiple resonances. This metamaterial-based filter, consisting of a metal-dielectric-metal sandwiched structure, possesses a notable spectral-filtering capability with a 0.5-THz-broad bandwidth and excellent band-edge transitions of 140% THz and 182% THz in the THz-gap region. Furthermore, we manifest the mechanism for each of the resonances and the coupling within the composite metamaterial. This realization enables the capacity for engineering the electromagneticproperties to develop other complex optical functionalities. An example of a high-profile dualband THz bandpass filter is also proposed theoretically in this work.
    URI: http://www.aip.org/
    Appears in Collections:[物理系] 期刊論文

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