Numerical study on the localized surface plasmon resonance of cone-shaped nanoparticles

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	Numerical study on the localized surface plasmon resonance of cone-shaped nanoparticles
	Ni, Zugao; Ren, Hao; Luo, Ji; Yao, Jun
刊名	JOURNAL OF MODERN OPTICS
	2011
卷号	58 期号:17 页码:1579-1584
关键词	localized surface plasmon resonance oblique angle cone-shaped nanoparticle refractive index sensitivity figure of merit sensing sensitivity
英文摘要	The effect of oblique angle on the localized surface plasmon resonance of cone-shaped nanoparticles is explored. The finite difference time domain method is applied to analyze the extinction spectra and the electric field intensity. The simulation results show that cone nanoparticles with a small oblique angle exhibit a larger resonant wavelength than those with a large oblique angle. The full width at half maximum initially decreases and then increases as the oblique angle increases, with a turning point of 17.5 degrees. The refractive index sensitivity and the sensing sensitivity both decrease when the oblique angle of the cone nanoparticles increases, achieving a maximum figure of merit (FOM) of 14.6 RIU(-1). For cone-shaped nanoparticles, the shape can be described by the power exponent m of the curve in the cross-section. The larger the power exponent m, the larger the oblique angle. Cone-shaped nanoparticles with power exponent m < 1 (concave conical surface) exhibit larger FOM than those with m > 1 (convex conical surface). The largest FOM is achieved when m = 1/3.
WOS标题词	Science & Technology ; Physical Sciences
类目[WOS]	Optics
研究领域[WOS]	Optics
关键词[WOS]	DIELECTRIC ENVIRONMENT ; SILVER NANOPARTICLES ; OPTICAL-PROPERTIES ; SPECTROSCOPY ; SENSITIVITY ; MONOLAYERS
收录类别	SCI
语种	英语
WOS记录号	WOS:000295867000010
公开日期	2015-12-24
内容类型	期刊论文
源URL	[http://ir.ioe.ac.cn/handle/181551/3429]
专题	光电技术研究所_光电技术研究所被WoS收录文章
作者单位	Chinese Acad Sci, Inst Opt & Elect, State Key Lab Opt Technol Microfabricat, Chengdu 610209, Peoples R China
推荐引用方式 GB/T 7714	Ni, Zugao,Ren, Hao,Luo, Ji,et al. Numerical study on the localized surface plasmon resonance of cone-shaped nanoparticles[J]. JOURNAL OF MODERN OPTICS,2011,58(17):1579-1584.
APA	Ni, Zugao,Ren, Hao,Luo, Ji,&Yao, Jun.(2011).Numerical study on the localized surface plasmon resonance of cone-shaped nanoparticles.JOURNAL OF MODERN OPTICS,58(17),1579-1584.
MLA	Ni, Zugao,et al."Numerical study on the localized surface plasmon resonance of cone-shaped nanoparticles".JOURNAL OF MODERN OPTICS 58.17(2011):1579-1584.