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题名:
Ultrabroadband superoscillatory lens composed by plasmonic metasurfaces for subdiffraction light focusing
作者: Tang, Dongliang; Wang, Changtao; Zhao, Zeyu; Wang, Yanqin; Pu, Mingbo; Li, Xiong; Gao, Ping; Luo, Xiangang
刊名: LASER & PHOTONICS REVIEWS
出版日期: 2015-11-01
卷号: 9, 期号:6, 页码:713-719
关键词: ultrabroadband ; superoscillatory lens ; plasmonic metasurfaces ; subdiffraction
DOI: 10.1002/lpor.201500182
文章类型: Article
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
项目资助者: 973 Program of China(2013CBA01700) ; Chinese Nature Science Grant(61138002 ; 61177013)
语种: 英语
WOS记录号: WOS:000368255200014
ISSN号: 1863-8880
Citation statistics:
内容类型: 期刊论文
URI标识: http://ir.ioe.ac.cn/handle/181551/3832
Appears in Collections:光电技术研究所被WoS收录文章_期刊论文

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作者单位: Chinese Acad Sci, Inst Opt & Elect, State Key Lab Opt Technol Nanofabricat & Microeng, Chengdu 610209, Peoples R China

Recommended Citation:
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.
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