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题名:
Influence of V-shaped plasmonic nanostructures on beam propagation
作者: Fu, Yongqi; Zhou, W.; Lim, L. E. N.; Du, C.; Shi, H.; Wang, C.; Luo, X.
刊名: APPLIED PHYSICS B-LASERS AND OPTICS
出版日期: 2007-02-01
卷号: 86, 期号:3, 页码:461-466
文章类型: Article
英文摘要: The influence of V-shaped plasmonic nanostructures caused by focused ion beam milling on transmission properties are addressed in this paper. In order to evaluate the influence, a finite-difference and time-domain numerical method is employed for simulation of the plasmonic structures flanked with the corrugations with equal groove depth at the exit side of a metal film which is coated on a quartz substrate. Our simulation results have shown that a V-shaped subwavelength central slit/aperture is helpful for beam shaping. It plays a positive and dominant role in transmissivity. However, the V-shaped grooves cause a red shift of the peak wavelength and a broadening of the cut-off wavelength. This leads to the beam diverging in the region of the far field. In the case of the existence of both the V-shaped central slit and the V-shaped grooves, the influence of the grooves is less compared to that of the central slit, and can be ignored theoretically.
WOS标题词: Science & Technology ; Physical Sciences
类目[WOS]: Optics ; Physics, Applied
研究领域[WOS]: Optics ; Physics
关键词[WOS]: SINGLE SUBWAVELENGTH APERTURE ; EVANESCENT-WAVE MODEL ; ENHANCED TRANSMISSION ; OPTICAL-TRANSMISSION ; SURFACE CORRUGATIONS ; MICROWAVE-RADIATION ; LIGHT TRANSMISSION ; METALLIC GRATINGS ; HOLE ARRAYS ; FILMS
收录类别: SCI
语种: 英语
WOS记录号: WOS:000244292500019
Citation statistics:
内容类型: 期刊论文
URI标识: http://ir.ioe.ac.cn/handle/181551/3567
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: 1.Nanyang Technol Univ, Sch Mech & Aerosp Engn, Precis Engn & Nanotechnol, Singapore 639798, Singapore
2.Chinese Acad Sci, Inst Opt & elect, State Key Lab Opt Techoml Microfabricat, Chengdu 610209, Peoples R China

Recommended Citation:
Fu, Yongqi,Zhou, W.,Lim, L. E. N.,et al. Influence of V-shaped plasmonic nanostructures on beam propagation[J]. APPLIED PHYSICS B-LASERS AND OPTICS,2007,86(3):461-466.
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