Polarization-selective optical resonance with extremely narrow linewidth in Si dimers array for application in ultra-sensitive refractive sensing

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• 作者：Dong Fu<sup>asup><sup> ; sup><sup>bsup> ; Zuyin Zhang<sup>asup><sup> ; sup><sup>bsup> ; Jian Li<sup>asup><sup> ; sup><sup>bsup> ; Haoyue Wu<sup>asup><sup> ; sup><sup>bsup> ; Wenbo Wang<sup>asup><sup> ; sup><sup>bsup> ; Xin Wei<sup>asup><sup> ; sup><sup>weix@red.semi.ac.cnsup>
• 关键词：High index material ; Mie resonances ; Coupled dipole approximation ; Refractive sensing
• 刊名：Optics Communications
• 出版年：2017
• 出版时间：1 May 2017
• 年：2017
• 卷：390
• 期：Complete
• 页码：41-48
• 全文大小：1094 K
• 卷排序：390

文摘

A nanostructure consisting of periodically arranged Si dimers is proposed. The optical properties are investigated by the coupled dipole approximation. Dramatic enhancement of electric field is achieved in the gap of Si dimer. The proposed system shows high sensitivity in application of refractive sensing.