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    Please use this identifier to cite or link to this item: http://ir.lib.ncu.edu.tw/handle/987654321/27734


    Title: Extraordinary transmittance in three-dimensional crater, pyramid, and hole-array structures prepared through reversal imprinting of metal films
    Authors: Chen,HL;Chuang,SY;Lee,WH;Kuo,SS;Su,WF;Ku,SL;Chou,YF
    Contributors: 薄膜技術中心
    Keywords: SURFACE-PLASMON RESONANCE;OPTICAL-TRANSMISSION;NANOSTRUCTURES;LIGHT
    Date: 2009
    Issue Date: 2010-06-29 19:15:58 (UTC+8)
    Publisher: 中央大學
    Abstract: We used a reversal imprinting-in-metal (RIM) process to fabricate various three-dimensional (3D) metal structures under low pressure. Molds featuring different shapes were used to pattern various sub-wavelength metal structures, including pyramidal, hole-array, and craterlike structures. Refractive index matching and cavity effects both enhanced the degree of transmission of these structured metal films. The crater-like structure appears to be a promising material because of the unique properties imparted by the elongated and gradually tapering spacing of its cavities. From both near-field simulations and experimentally obtained optical spectra, we found that the cavity effect in the crater-like structure led to significantly enhanced transmission of the optical intensity. Thus, this RIM process allows the ready fabrication of various two-and three-dimensional metallic structures for use in surface plasmon-based devices. (C) 2009 Optical Society of America
    Relation: OPTICS EXPRESS
    Appears in Collections:[薄膜技術研究中心] 期刊論文

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