Ultrabroadband superoscillatory lens composed by plasmonic metasurfaces for subdiffraction light focusing

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	Ultrabroadband superoscillatory lens composed by plasmonic metasurfaces for subdiffraction light focusing
	Tang, Dongliang; Wang, Changtao; Zhao, Zeyu; Wang, Yanqin; Pu, Mingbo; Li, Xiong; Gao, Ping; Luo, Xiangang
刊名	LASER & PHOTONICS REVIEWS
	2015-11-01
卷号	9 期号:6 页码:713-719
关键词	ultrabroadband superoscillatory lens plasmonic metasurfaces subdiffraction
ISSN号	1863-8880
英文摘要	Conventional optics is diffraction limited due to the cutoff of spatial frequency components, and evanescent waves allow subdiffraction optics at the cost of complex near-field manipulation. Recently, optical superoscillatory phenomena were employed to realize superresolution lenses in the far field, but suffering from very narrow working wavelength band due to the fragility of the superoscillatory light field. Here, an ultrabroadband superoscillatory lens (UBSOL) is proposed and realized by utilizing the metasurface-assisted law of refraction and reflection in arrayed nanorectangular apertures with variant orientations. The ultrabroadband feature mainly arises from the nearly dispersionless phase profile of transmitted light through the UBSOL for opposite circulation polarization with respect to the incident light. It is demonstrated in experiments that subdiffraction light focusing behavior holds well with nearly unchanged focal patterns for wavelengths spanning across visible and near-infrared light. This method is believed to find promising applications in superresolution microscopes or telescopes, high-density optical data storage, etc.
WOS标题词	Science & Technology ; Physical Sciences
类目[WOS]	Optics ; Physics, Applied ; Physics, Condensed Matter
研究领域[WOS]	Optics ; Physics
关键词[WOS]	SUPER-OSCILLATORY LENS ; OPTICAL SUPERRESOLUTION ; POLARIZED-LIGHT ; FAR-FIELD ; SURFACE ; MICROSCOPE ; ELEMENTS ; CREATION ; DESIGN ; PHASE
收录类别	SCI
语种	英语
WOS记录号	WOS:000368255200014
内容类型	期刊论文
源URL	[http://ir.ioe.ac.cn/handle/181551/3832]
专题	光电技术研究所_光电技术研究所被WoS收录文章
作者单位	Chinese Acad Sci, Inst Opt & Elect, State Key Lab Opt Technol Nanofabricat & Microeng, Chengdu 610209, Peoples R China
推荐引用方式 GB/T 7714	Tang, Dongliang,Wang, Changtao,Zhao, Zeyu,et al. Ultrabroadband superoscillatory lens composed by plasmonic metasurfaces for subdiffraction light focusing[J]. LASER & PHOTONICS REVIEWS,2015,9(6):713-719.
APA	Tang, Dongliang.,Wang, Changtao.,Zhao, Zeyu.,Wang, Yanqin.,Pu, Mingbo.,...&Luo, Xiangang.(2015).Ultrabroadband superoscillatory lens composed by plasmonic metasurfaces for subdiffraction light focusing.LASER & PHOTONICS REVIEWS,9(6),713-719.
MLA	Tang, Dongliang,et al."Ultrabroadband superoscillatory lens composed by plasmonic metasurfaces for subdiffraction light focusing".LASER & PHOTONICS REVIEWS 9.6(2015):713-719.