The origin of the super-resolution via a nonlinear thin film

CORC > 上海光学精密机械研究所 > 中国科学院上海光学精密机械研究所 > 高密度光存储技术实验室

	The origin of the super-resolution via a nonlinear thin film
	Wei JS(魏劲松) ; Xiao Mufei
刊名	opt. commun.
	2008
卷号	281 期号:6 页码:1654
关键词	Annular rings Local field intensity Numerical aperture Optical index Spatial frequency
ISSN号	0030-4018
中文摘要	in laser applications, resolutions beyond the diffraction limit can be obtained with a thin film of strong optical nonlinear effect. the optical index of the silicon thin film is modified with the incident laser beam as a function of the local field intensity n(r) similar to e-2(r). for ultrathin films of thickness d << lambda the transmitted light through the film forms a profile of annular rings. therefore, the device can be related to the realization of super-resolution with annular pupils. theoretical analysis shows that the focused light spot appears significantly reduced in comparison with the diffraction limit that is determined by the laser wavelength and the numerical aperture of the converging lens. analysis on the additional optical transfer function due to the thin film confirms that the resolving power is improved in the high spatial frequency region. (c) 2007 published by elsevier b.v.
学科主题	光存储
收录类别	EI
语种	英语
WOS记录号	WOS:000253612300048
公开日期	2009-09-22
内容类型	期刊论文
源URL	[http://ir.siom.ac.cn/handle/181231/4073]
专题	上海光学精密机械研究所_高密度光存储技术实验室
推荐引用方式 GB/T 7714	Wei JS,Xiao Mufei. The origin of the super-resolution via a nonlinear thin film[J]. opt. commun.,2008,281(6):1654, 1661.
APA	魏劲松,&Xiao Mufei.(2008).The origin of the super-resolution via a nonlinear thin film.opt. commun.,281(6),1654.
MLA	魏劲松,et al."The origin of the super-resolution via a nonlinear thin film".opt. commun. 281.6(2008):1654.