Leveraging Nanoscale Plasmonic Modes to Achieve Reproducible Enhancement of Light

被引：145

作者：

Hill, Ryan T. ^{[2
]}

Mock, Jack J. ^{[1
,3
]}

Urzhumov, Yaroslav ^{[1
,3
]}

Sebba, David S. ^{[4
]}

Oldenburg, Steven J. ^{[4
]}

Chen, Shiuan-Yeh ^{[1
,5
]}

Lazarides, Anne A. ^{[2
,3
,5
]}

Chilkoti, Ashutosh ^{[2
,6
]}

Smith, David R. ^{[1
,3
]}

机构：

[1] Duke Univ, Dept Elect & Comp Engn, Durham, NC 27708 USA

[2] Duke Univ, CBIMMS, Durham, NC 27708 USA

[3] Duke Univ, CMIP, Durham, NC 27708 USA

[4] NanoComposix Inc, San Diego, CA 92111 USA

[5] Duke Univ, Dept Mech Engn & Mat Sci, Durham, NC 27708 USA

[6] Duke Univ, Dept Biomed Engn, Durham, NC 27708 USA

来源：

NANO LETTERS | 2010年 / 10卷 / 10期

关键词：

Nanophotonics; plasmon resonant nanoparticles; surface-enhanced resonant Raman scattering; gold film; doughnut; RAMAN-SCATTERING; SILVER NANOPARTICLES; GOLD NANOPARTICLES; SPECTROSCOPY; RESONANCES; FILM; SERS; METAMATERIALS; ASSEMBLIES; CLUSTERS;

D O I：

10.1021/nl102443p

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

The strongly enhanced and localized optical fields that occur within the gaps between metallic nanostructures can be leveraged for a wide range of functionality in nanophotonic and optical metamaterial applications Here, we introduce a means of precise control over these nanoscale gaps through the application of a molecular spacer layer that is self-assembled onto a gold film, upon which gold nanoparticles (NPs) are deposited electrostatically Simulations using a three-dimensional finite element model and measurements from single NPs confirm that the gaps formed by this process. between the NP and the gold film, are highly reproducible transducers of surface-enhanced resonant Raman scattering With a spacer layer of roughly 16 nm, all NPs exhibit a strong Raman signal that decays rapidly as the spacer layer is increased

引用

页码：4150 / 4154

页数：5

共 43 条

[1] A SERS-active system based on silver nanoparticles tethered to a deposited silver film [J].