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Sub-diffraction phase-contrast imaging of transparent nano-objects by plasmonic lens structure
Yao, Na; Wang, Changtao; Tao, Xing; Wang, Yanqin; Zhao, Zeyu; Luo, Xiangang; Yao, N.
Source PublicationNanotechnology
Volume24Issue:13Pages:135203
2013
Language英语
ISSN09574484
DOI10.1088/0957-4484/24/13/135203
Indexed BySCI ; Ei
WOS IDWOS:000316208600005
Subtype期刊论文
AbstractWe propose a specially designed plasmonic lens structure to succeed in realizing sub-diffraction phase-contrast imaging of transparent nano-objects. The nano-objects are embedded inside the insulator layer of the metal-insulator-metal (MIM) plasmonic structure and have a small refractive index difference with respect to the transparent insulator layer. The excited surface plasmons in the MIM structure help to greatly enhance scattered light from the nano-objects and effectively suppress the transmitted illumination light. A spatial resolution of about 64 nm and a minimum distinguishable refractive index difference down to 0.05 are numerically demonstrated. For sub-diffraction phase-contrast imaging of irregular three-dimensional (3D) nanowires and nanocylinders, the optimized MIM structure shows much better performance in comparison with that of a superlens. © 2013 IOP Publishing Ltd.; We propose a specially designed plasmonic lens structure to succeed in realizing sub-diffraction phase-contrast imaging of transparent nano-objects. The nano-objects are embedded inside the insulator layer of the metal-insulator-metal (MIM) plasmonic structure and have a small refractive index difference with respect to the transparent insulator layer. The excited surface plasmons in the MIM structure help to greatly enhance scattered light from the nano-objects and effectively suppress the transmitted illumination light. A spatial resolution of about 64 nm and a minimum distinguishable refractive index difference down to 0.05 are numerically demonstrated. For sub-diffraction phase-contrast imaging of irregular three-dimensional (3D) nanowires and nanocylinders, the optimized MIM structure shows much better performance in comparison with that of a superlens. © 2013 IOP Publishing Ltd.
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Cited Times:8[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.ioe.ac.cn/handle/181551/6818
Collection微细加工光学技术国家重点实验室(开放室)
Corresponding AuthorYao, N.
Affiliation State Key Laboratory of Optical Technologies on Nano-Fabrication and Micro-Engineering, Institute of Optics and Electronics, Chinese Academy of Science, PO Box 350, Chengdu 610209, China
Recommended Citation
GB/T 7714
Yao, Na,Wang, Changtao,Tao, Xing,et al. Sub-diffraction phase-contrast imaging of transparent nano-objects by plasmonic lens structure[J]. Nanotechnology,2013,24(13):135203.
APA Yao, Na.,Wang, Changtao.,Tao, Xing.,Wang, Yanqin.,Zhao, Zeyu.,...&Yao, N..(2013).Sub-diffraction phase-contrast imaging of transparent nano-objects by plasmonic lens structure.Nanotechnology,24(13),135203.
MLA Yao, Na,et al."Sub-diffraction phase-contrast imaging of transparent nano-objects by plasmonic lens structure".Nanotechnology 24.13(2013):135203.
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