High-order plasmon resonances in an Ag/Al2O3 core/shell nanorice

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	High-order plasmon resonances in an Ag/Al2O3 core/shell nanorice
	Chen, L ; Wei, H ; Chen, KQ ; Xu, HX
刊名	CHINESE PHYSICS B
	2014
卷号	23 期号:2
关键词	localized surface plasmon resonances nanorice core-shell LSPR sensing
ISSN号	1674-1056
通讯作者	Xu, HX (reprint author), Chinese Acad Sci, Beijing Natl Lab Condensed Matter Phys, Beijing 100190, Peoples R China.
中文摘要	Using numerical simulation, we investigate the high-order plasmon resonances in individual nanostructures of an Ag nanorice core surrounded by an Al2O3 shell. The peak positions of localized surface plasmon resonances (LSPRs) are red-shifted exponentially with the increase of the dielectric shell thickness. This is due to the exponential decay of electromagnetic field intensity in the direction perpendicular to the interface. This exponential red-shift depends on the wavelength of the resonance peak instead of the resonance order. In addition, we find that the LSPRs in an Ag nanorice of 60-nm width can be perfectly described by a single linear function. These features make nanorice an ideal platform for sensing applications.
资助信息	National Key Basic Research and Development Program of China [2009CB930700, 2012YQ12006005]; National Natural Science Foundation of China [11134013, 11227407, 11004237]; Knowledge Innovation Project of the Chinese Academy of Sciences [KJCX2-EW-W04]
语种	英语
公开日期	2015-04-14
内容类型	期刊论文
源URL	[http://ir.iphy.ac.cn/handle/311004/59010]
专题	物理研究所_物理所公开发表论文_物理所公开发表论文_期刊论文
推荐引用方式 GB/T 7714	Chen, L,Wei, H,Chen, KQ,et al. High-order plasmon resonances in an Ag/Al2O3 core/shell nanorice[J]. CHINESE PHYSICS B,2014,23(2).
APA	Chen, L,Wei, H,Chen, KQ,&Xu, HX.(2014).High-order plasmon resonances in an Ag/Al2O3 core/shell nanorice.CHINESE PHYSICS B,23(2).
MLA	Chen, L,et al."High-order plasmon resonances in an Ag/Al2O3 core/shell nanorice".CHINESE PHYSICS B 23.2(2014).