Superenhanced photonic nanojet by core-shell microcylinders

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 987654321/76475

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题名:	Superenhanced photonic nanojet by core-shell microcylinders
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;Power enhancement
日期:	2012-05
上传时间:	2012-05-10 14:57:30 (UTC+8)
出版者:	Amsterdam: Elsevier BV * North-Holland
摘要:	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.
關聯:	Physics Letters A 376(23), pp.1856–1860
DOI:	10.1016/j.physleta.2012.04.035
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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