Tunable photonic nanojet achieved by core-shell microcylinder with nematic liquid crystal

淡江大學機構典藏 > 工學院 > 機械與機電工程學系暨研究所 > 期刊論文 > Item 987654321/90574

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题名:	Tunable photonic nanojet achieved by core-shell microcylinder with nematic liquid crystal
作者:	Liu, Cheng-Yang
贡献者:	淡江大學機械與機電工程學系
关键词:	photonic nanojet;microcylinder;liquid crystal
日期:	2013-06
上传时间:	2013-06-28 23:54:58 (UTC+8)
出版者:	England: Taylor & Francis Ltd.
摘要:	The tunable photonic nanojet achieved by core-shell microcylinder with nematic liquid crystal is reported. The core-shell microcylinder can be obtained by the infiltration of liquid crystals into the air core of microcylinder. The refractive indices of liquid crystals can be changed by rotating the directors of liquid crystals. Therefore, we can control the flow direction of photonic nanojet in two-dimensional core-shell microcylinder structures. Using high resolution finite-difference time-domain simulation, we demonstrated that the photonic nanojet can be continuously tuned in the core-shell microcylinder. The horizontal and vertical shifts of photonic nanojet depend strongly on the director of liquid crystals. Such a mechanism of nanojet adjustment should open up a new application for using visible light to detecting nanoparticles, optical gratings, and single molecules with subwavelength spatial resolution.
關聯:	Journal of Modern Optics 60(7), pp.538-543
DOI:	10.1080/09500340.2013.796014
显示于类别:	[機械與機電工程學系暨研究所] 期刊論文

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