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    Please use this identifier to cite or link to this item: http://tkuir.lib.tku.edu.tw:8080/dspace/handle/987654321/76475


    Title: Superenhanced photonic nanojet by core-shell microcylinders
    Authors: Liu, Cheng-Yang
    Contributors: 淡江大學機械與機電工程學系
    Keywords: Photonic nanojet;Microcylinder;Power enhancement
    Date: 2012-05
    Issue Date: 2012-05-10 14:57:30 (UTC+8)
    Publisher: Amsterdam: Elsevier BV * North-Holland
    Abstract: The super-enhancement of photonic nanojets generated at the shadow side surfaces of core-shell microcylinders illuminated by a plane wave is reported. Using high resolution finite-difference time-domain simulation, the enhancements of photonic nanojet at resonance and off-resonance conditions of microcylinders are investigated. The intensity enhancement of photonic nanojet depends strongly on the thickness of metal shell. Under proper resonance condition, the photonic nanojet super-enhancement can be excited in the core-shell microcylinder. Even under off-resonance condition, the photonic nanojet from microcylinder is still strong enough. The results may provide a new technique to detect and image nanoscale objects below the diffraction limit. This could yield a new ultra-microscopy technique for using visible light to detecting nanoparticles, optical gratings, and single molecules.
    Relation: Physics Letters A 376(23), pp.1856–1860
    DOI: 10.1016/j.physleta.2012.04.035
    Appears in Collections:[機械與機電工程學系暨研究所] 期刊論文

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