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    題名: Ultra-elongated photonic nanojets generated by a graded-index microellipsoid
    作者: Liu, Cheng-Yang;劉承揚
    貢獻者: 淡江大學機械與機電工程學系
    關鍵詞: photonic nanojet;ellipsoid;core-shell
    日期: 2013-02-01
    上傳時間: 2013-02-27 11:12:32 (UTC+8)
    出版者: Cambridge: Electromagnetics Academy
    摘要: The detailed analysis of localized elongated photonic nanojets generated by a graded-index microellipsoid is reported. Using high resolution finite-difference time-domain simulation, we have studied the distribution of the electric energy density within and in the vicinity outside a dielectric core-shell microellipsoid. Here we consider dielectric composite microellipsoid consisting of a core and several concentric shells having different types of index grading. It becomes possible to elongate the nanojet abnormally. The latitudinal and longitudinal sizes of a nanojet and its peak intensity depending on the optical contrast variation of shells are numerically investigated. The results may provide a new ultra-microscopy technique for optical detection of natural or artificially introduced nanostructures deeply embedded within biological cells.
    關聯: Progress In Electromagnetics Research Letters 37, pp.153-165
    DOI: 10.2528/PIERL12121902
    顯示於類別:[機械與機電工程學系暨研究所] 期刊論文

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