Highly tunable propagating surface plasmons on supported silver nanowires

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	Highly tunable propagating surface plasmons on supported silver nanowires
	Wei, H ; Zhang, SP ; Tian, XR ; Xu, HX
刊名	PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA
	2013
卷号	110 期号:12 页码:4494
关键词	plasmonics imaging sensing quantum dot modulation
ISSN号	0027-8424
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	Surface plasmons, the quanta of the collective oscillations of free electrons at metal surface, can be easily tuned by changing the surrounding dielectric materials, which is well known for metal nanoparticles and metal surfaces, but less is known for one-dimensional metal nanowires. Here, we find an extremely large tunability of surface plasmons on Ag nanowires with a beat period of the near-field distribution pattern increasing by 90 nm per nanometer of Al2O3 coating, or by 16 mu m per refractive index unit change in the surrounding medium. Such high sensitivity is crucial to directly control the optical signal distribution for various routing and demultiplexing functions in plasmonic circuits and may pave the way to the development of on-chip ultrasensitive biosensing.
资助信息	Ministry of Science and Technology of China [2009CB930700, 2012YQ12006005]; National Natural Science Foundation of China [11004237, 11134013, 11227407]; "Knowledge Innovation Project" of CAS [KJCX2-EW-W04]
语种	英语
公开日期	2014-01-16
内容类型	期刊论文
源URL	[http://ir.iphy.ac.cn/handle/311004/57078]
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	Wei, H,Zhang, SP,Tian, XR,et al. Highly tunable propagating surface plasmons on supported silver nanowires[J]. PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA,2013,110(12):4494.
APA	Wei, H,Zhang, SP,Tian, XR,&Xu, HX.(2013).Highly tunable propagating surface plasmons on supported silver nanowires.PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA,110(12),4494.
MLA	Wei, H,et al."Highly tunable propagating surface plasmons on supported silver nanowires".PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA 110.12(2013):4494.