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Improvement of Focusing Efficiency of Plasmonic Planar Lens by Oil Immersion
Jiao, Jiao1,2; Li, Xiong1; Huang, Xiaoping2; Zhao, Qing2; Luo, Xiangang1
Source PublicationPLASMONICS
Indexed BySCI
WOS IDWOS:000353827400007
AbstractLens 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.
KeywordV-shaped Antenna Plasmonic Planar Lens Oil Immersion
WOS Research AreaChemistry ; Science & Technology - Other Topics ; Materials Science
WOS SubjectChemistry, Physical ; Nanoscience & Nanotechnology ; Materials Science, Multidisciplinary
Citation statistics
Cited Times:3[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Affiliation1.Chinese Acad Sci, Inst Opt & Elect, State Key Lab Opt Technol Nanofabricat & Microeng, Chengdu 610209, Peoples R China
2.Univ Elect Sci & Technol China, Sch Phys Elect, Chengdu 610054, Peoples R China
Recommended Citation
GB/T 7714
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.
APA Jiao, Jiao,Li, Xiong,Huang, Xiaoping,Zhao, Qing,&Luo, Xiangang.(2015).Improvement of Focusing Efficiency of Plasmonic Planar Lens by Oil Immersion.PLASMONICS,10(3),539-545.
MLA Jiao, Jiao,et al."Improvement of Focusing Efficiency of Plasmonic Planar Lens by Oil Immersion".PLASMONICS 10.3(2015):539-545.
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