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题名:
Improvement of Focusing Efficiency of Plasmonic Planar Lens by Oil Immersion
作者: Jiao, Jiao; Li, Xiong; Huang, Xiaoping; Zhao, Qing; Luo, Xiangang
刊名: PLASMONICS
出版日期: 2015
卷号: 10, 期号:3, 页码:539-545
学科分类: V-shaped antenna; Plasmonic planar lens; Oil immersion
DOI: 10.1007/s11468-014-9838-5
通讯作者: Luo, XG (reprint author), Chinese Acad Sci, Inst Opt & Elect, State Key Lab Opt Technol Nanofabricat & Microeng, POB 350, Chengdu 610209, Peoples R China.
文章类型: 期刊论文
中文摘要: Lens is usually immersed into oil or other mediums to increase the numerical aperture of the focusing lens and significantly improve the focusing efficiency. V-shaped plasmonic lens has attracted many research attentions because of its advantages like ability of reduced spherical aberration, ultrathin thickness, simple design, and high adjustability. However, it is hard to apply in practice since the focusing ability of such lens is low and errors can be great. Based on the incident light which wavelength is 1.5 mu m, a V-shaped plasmonic planar lens with a thickness of 30 nm is designed, and it is immersed into the medium at a refractive index of 1 to 2.5. By matching conditions of transverse wave vector and Rayleigh limit formula, when the refractive index of mediums increases, the focusing efficiency becomes stronger, the spatial resolution is higher, and the focusing spot is changed. Through this easy-to-handle method, the significant focusing effect can be obtained, and this method promotes the applications of planar focusing lens in optical focusing, optical storage, laser-writing, and miniature optical integrated devices.
英文摘要: Lens is usually immersed into oil or other mediums to increase the numerical aperture of the focusing lens and significantly improve the focusing efficiency. V-shaped plasmonic lens has attracted many research attentions because of its advantages like ability of reduced spherical aberration, ultrathin thickness, simple design, and high adjustability. However, it is hard to apply in practice since the focusing ability of such lens is low and errors can be great. Based on the incident light which wavelength is 1.5 mu m, a V-shaped plasmonic planar lens with a thickness of 30 nm is designed, and it is immersed into the medium at a refractive index of 1 to 2.5. By matching conditions of transverse wave vector and Rayleigh limit formula, when the refractive index of mediums increases, the focusing efficiency becomes stronger, the spatial resolution is higher, and the focusing spot is changed. Through this easy-to-handle method, the significant focusing effect can be obtained, and this method promotes the applications of planar focusing lens in optical focusing, optical storage, laser-writing, and miniature optical integrated devices.
收录类别: SCI
项目资助者: 973 Program of China [2013CBA01700] ; National Natural Science Funds [61138002, 61177013, 61307043]
语种: 英语
WOS记录号: WOS:000353827400007
ISSN号: 1557-1955
Citation statistics:
内容类型: 期刊论文
URI标识: http://ir.ioe.ac.cn/handle/181551/6907
Appears in Collections:微细加工光学技术国家重点实验室(开放室)_期刊论文

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作者单位: 1.[Jiao, Jiao
2.Li, Xiong
3.Luo, Xiangang] Chinese Acad Sci, Inst Opt & Elect, State Key Lab Opt Technol Nanofabricat & Microeng, Chengdu 610209, Peoples R China
4.[Jiao, Jiao
5.Huang, Xiaoping
6.Zhao, Qing] Univ Elect Sci & Technol China, Sch Phys Elect, Chengdu 610054, Peoples R China

Recommended Citation:
Jiao, Jiao,Li, Xiong,Huang, Xiaoping,et al. Improvement of Focusing Efficiency of Plasmonic Planar Lens by Oil Immersion[J]. PLASMONICS,2015,10(3):539-545.
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