Plasmonics of multifaceted metallic nanoparticles, field enhancement, and TERS

被引：10
|
作者：
Noguez, Cecilia [1 ]
Villagomez, Carlos J. [1 ]
Gonzalez, Ana L. [2 ]
机构：
[1] Univ Nacl Autonoma Mexico, Inst Fis, Mexico City 01000, DF, Mexico
[2] Univ Autonoma Puebla, Inst Fis, Puebla 72570, Mexico
来源：
PHYSICA STATUS SOLIDI B-BASIC SOLID STATE PHYSICS | 2015年 / 252卷 / 01期
关键词：
field enhancement; metallic nanoparticles; plasmonics; SERS; surface plasmon resonance; TERS; ATOMIC-FORCE MICROSCOPY; RESOLUTION ELECTRON-MICROSCOPY; SCANNING-TUNNELING-MICROSCOPY; SURFACTANT-DIRECTED SYNTHESIS; RAMAN-SCATTERING SERS; GOLD NANORODS; OPTICAL-PROPERTIES; SINGLE-MOLECULE; ASPECT-RATIO; SILVER NANOPARTICLES;
D O I：
10.1002/pssb.201350416
中图分类号：
O469 [凝聚态物理学];
学科分类号：
070205 ;
摘要：
Metal nanoparticles (NPs) exhibit remarkable physical and chemical properties that are morphology dependent. Particular interest has been paid to the optical response of NPs because their surface plasmon excitations strongly couple with external light. At the nanoscale, this physical property translates to new phenomena because these surface plasmon resonances are localized and consequently they enhance the near electromagnetic field. The latter can be controlled for increasing significantly the sensitivity of optical spectroscopies. In this feature article, we discuss surface plasmons in metal NPs, their localization, the electromagnetic field enhancement of such plasmons, and their application in the so-called tip-enhanced Raman spectroscopy (TERS). [GRAPHICS] Tip-enhanced Raman spectroscopy model using plasmonics. (C) 2014 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim
引用
收藏
页码：56 / 71
页数：16
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