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题名:
Investigation of propagation properties of plasmonic nanostructures with nonparaxial Gaussian beam illumination
作者: Fu, Yongqi1,3; Zhou, Wei1,2; Lim, Lennie Enk Ng1; Du, Chunlei3; Luo, Xiangang3
刊名: JOURNAL OF NANOPHOTONICS
出版日期: 2007
卷号: 1
关键词: SPP ; optical probe ; subwavelength aperture ; FDTD
文章类型: Article
英文摘要: An optical probe with a single aperture flanked by depth-tuned grooves is presented. It is employed as an example to investigate propagation properties of the plasmonic nanostructures with a nonparaxial Gaussian beam illumination. The propagation through the subwavelength aperture is the process that a near-field diffraction of the Gaussian beam interferes with the surface plasmon polaritons (SPP) wave induced wavelets on surface of the grooves. An enhanced optical transmission at the exit side of a subwavelength aperture and a degraded reflection at top side of the compound dielectric/metal nanostructure (air/glass/C/Ag/air) of the probe can be generated with this illumination. Characteristics of the Gaussian beam illumination have been studied numerically via analysis of the transmission and reflection issues. In contrast, the results for plane wave illumination were given as well. Two-dimensional (2D) finite-difference time-domain (FDTD) algorithm is employed for the 2D simulation.
WOS标题词: Science & Technology ; Physical Sciences
类目[WOS]: Nanoscience & Nanotechnology ; Optics
研究领域[WOS]: Science & Technology - Other Topics ; Optics
关键词[WOS]: SINGLE SUBWAVELENGTH APERTURE ; SURFACE CORRUGATIONS ; LIGHT ; TRANSMISSION
收录类别: SCI
语种: 英语
WOS记录号: WOS:000261665400017
Citation statistics:
内容类型: 期刊论文
URI标识: http://ir.ioe.ac.cn/handle/181551/3576
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 Ctr, Singapore 639798, Singapore
2.Agcy Sci Res & Technol, Inst High Performance Comp, Singapore 117528, Singapore
3.Chinese Acad Sci, Inst Opt & Elect, State Key Lab Opt Technol Microfabricat, Chengdu 610209, Sichuan Prov, Peoples R China

Recommended Citation:
Fu, Yongqi,Zhou, Wei,Lim, Lennie Enk Ng,et al. Investigation of propagation properties of plasmonic nanostructures with nonparaxial Gaussian beam illumination[J]. JOURNAL OF NANOPHOTONICS,2007,1.
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