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	Methods of polarization engineering and their applications
	ZHAN, QIWEN
	2012-08-21
著作权人	UNIVERSITY OF DAYTON
专利号	US8248599
国家	美国
文献子类	授权发明
其他题名	Methods of polarization engineering and their applications
英文摘要	Special polarization states are generated that have unique focusing properties that may be used to create extremely strong longitudinal fields. Combined with surface plasmon excitation, these polarization states can be used in apertureless near-field scanning optical microscopy systems. A radially polarized beam is directed into a plasmon-generating optical fiber comprising a metal coated, tapered, apertureless tip. The apertureless tip excites surface plasmon waves and direct the surface plasmon waves to the tip when a radially polarized beam propagates along the plasmon-generating optical fiber. An objective lens collects the near field optical signals from a sample positioned adjacent to the apertureless. Potential spatial resolution of the apertureless NSOM could reach beyond 10 nm. Such strong field enhancement allows the development of a reliable nano-Raman system that can measure mechanical as well as chemical compositions of samples with resolution beyond 10 nm.
公开日期	2012-08-21
申请日期	2007-06-21
状态	授权
内容类型	专利
源URL	[http://ir.opt.ac.cn/handle/181661/34508]
专题	半导体激光器专利数据库
作者单位	UNIVERSITY OF DAYTON
推荐引用方式 GB/T 7714	ZHAN, QIWEN. Methods of polarization engineering and their applications. US8248599. 2012-08-21.

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