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题名:
Plasmon hybridization in composite nanostructures with tunable resonances and vertex truncation analysis
作者: Luo, J.1,2; Qiu, C.K.1; Wang, W.M.1; Lin, Q.3
刊名: Applied Optics
出版日期: 2014
卷号: 53, 期号:16, 页码:3528-3532
学科分类: Electric fields - Finite difference time domain method - Refractive index - Resonance
DOI: 10.1364/AO.53.003528
通讯作者: Luo, J.
文章类型: 期刊论文
中文摘要: An Ag/SiO2/Ag sandwich delta nanostar with three sharp angles (30°) is proposed. The extinction efficiency property with a variation in environment refractive index has been investigated in detail by the finite difference time domain method. The refractive index response sensitivity is 482.67 nm/RIU. And the correlations between resonance wavelengths and thickness of the dielectric layer are also established. It reveals that as the thickness increases, the peak wavelength turns to red shift, and a tunable resonance wavelength is achieved through the thickness adjusting of the SiO2layer. The maximum of the electric field enhancement is 833.776 with the thickness of the dielectric layer h = 40 nm Moreover, the influence of the vertex truncation on the extinction spectra and the refractive index sensitivity has also been analyzed. © 2014 Optical Society of America.
英文摘要: An Ag/SiO2/Ag sandwich delta nanostar with three sharp angles (30°) is proposed. The extinction efficiency property with a variation in environment refractive index has been investigated in detail by the finite difference time domain method. The refractive index response sensitivity is 482.67 nm/RIU. And the correlations between resonance wavelengths and thickness of the dielectric layer are also established. It reveals that as the thickness increases, the peak wavelength turns to red shift, and a tunable resonance wavelength is achieved through the thickness adjusting of the SiO2layer. The maximum of the electric field enhancement is 833.776 with the thickness of the dielectric layer h = 40 nm Moreover, the influence of the vertex truncation on the extinction spectra and the refractive index sensitivity has also been analyzed. © 2014 Optical Society of America.
收录类别: SCI ; Ei
项目资助者: K. C. Wong Education Foundation, Hong Kong ; West Light Foundation of the Chinese Academy of Sciences [A11K012]
语种: 英语
WOS记录号: WOS:000337502100026
ISSN号: 1559-128X
Citation statistics:
内容类型: 期刊论文
URI标识: http://ir.ioe.ac.cn/handle/181551/6850
Appears in Collections:微细加工光学技术国家重点实验室(开放室)_期刊论文

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作者单位: 1. State Key Laboratory of Optical Technologies on Nano-Fabrication and Micro-Engineering, Institute of Optics and Electronics, Chinese Academy of Sciences, Chengdu, China
2. Graduate University of Chinese Academy of Sciences, Beijing, China
3. Department of Mechanical Engineering, Columbia University, New York, United States

Recommended Citation:
Luo, J.,Qiu, C.K.,Wang, W.M.,et al. Plasmon hybridization in composite nanostructures with tunable resonances and vertex truncation analysis[J]. Applied Optics,2014,53(16):3528-3532.
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