Managing light polarization via plasmon-molecule interactions within an asymmetric metal nanoparticle trimer

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	Managing light polarization via plasmon-molecule interactions within an asymmetric metal nanoparticle trimer
	Shegai, T ; Li, ZP ; Dadosh, T ; Zhang, ZY ; Xu, HX ; Haran, G
刊名	PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA
	2008
卷号	105 期号:43 页码:16448
关键词	SURFACE-ENHANCED RAMAN ELECTROMAGNETIC ENERGY-FLOW ARBITRARY SPHERES SCATTERING SERS HOLE ARRAYS SPECTROSCOPY SILVER SENSITIVITY POLARITONS FIELD
ISSN号	0027-8424
通讯作者	Xu, HX: Chinese Acad Sci, Inst Phys, Beijing Natl Lab Condensed Matter Phys, POB 603, Beijing 100080, Peoples R China.
中文摘要	The interaction of light with metal nanoparticles leads to novel phenomena mediated by surface plasmon excitations. In this article we use single molecules to characterize the interaction of surface plasmons with light, and show that such interaction can strongly modulate the polarization of the emitted light. The simplest nanostructures that enable such polarization modulation are asymmetric silver nanocrystal trimers, where individual Raman scattering molecules are located in the gap between two of the nanoparticles. The third particle breaks the dipolar symmetry of the two-particle junction, generating a wavelength-dependent polarization pattern. Indeed, the scattered light becomes elliptically polarized and its intensity pattern is rotated in the presence of the third particle. We use a combination of spectroscopic observations on single molecules, scanning electron microscope imaging, and generalized Mie theory calculations to provide a full picture of the effect of particles on the polarization of the emitted light. Furthermore, our theoretical analysis allows us to show that the observed phenomenon is very sensitive to the size of the trimer particles and their relative position, suggesting future means for precise control of light polarization on the nanoscale.
收录类别	SCI
资助信息	Natural Science Foundation of China [10625418]; Ministry of Science and Technology [2006DFB02020, 2007CB936800]; Chinese Academy of Science; Division of Materials Sciences and Engineering; Office of Basic Energy Sciences; Department of Energy [DEFG0205ER46209]; National Science Foundation [DMR-0606485]; Israel Science Foundation; Weizmann Institute of Science
语种	英语
公开日期	2013-09-18
内容类型	期刊论文
源URL	[http://ir.iphy.ac.cn/handle/311004/41726]
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	Shegai, T,Li, ZP,Dadosh, T,et al. Managing light polarization via plasmon-molecule interactions within an asymmetric metal nanoparticle trimer[J]. PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA,2008,105(43):16448.
APA	Shegai, T,Li, ZP,Dadosh, T,Zhang, ZY,Xu, HX,&Haran, G.(2008).Managing light polarization via plasmon-molecule interactions within an asymmetric metal nanoparticle trimer.PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA,105(43),16448.
MLA	Shegai, T,et al."Managing light polarization via plasmon-molecule interactions within an asymmetric metal nanoparticle trimer".PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA 105.43(2008):16448.