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Leveraging nanoscale plasmonic modes to achieve reproducible enhancement of light.

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Date
2010-10-13
Authors
Hill, Ryan T
Mock, Jack J
Urzhumov, Yaroslav
Sebba, David S
Oldenburg, Steven J
Chen, Shiuan-Yeh
Lazarides, Anne A
Chilkoti, Ashutosh
Smith, David R
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Abstract
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 1.6 nm, all NPs exhibit a strong Raman signal that decays rapidly as the spacer layer is increased.
Type
Journal article
Subject
Gold
Light
Nanoparticles
Nanostructures
Nanotechnology
Spectrum Analysis, Raman
Static Electricity
Permalink
https://hdl.handle.net/10161/4095
Published Version (Please cite this version)
10.1021/nl102443p
Publication Info
Hill, Ryan T; Mock, Jack J; Urzhumov, Yaroslav; Sebba, David S; Oldenburg, Steven J; Chen, Shiuan-Yeh; ... Smith, David R (2010). Leveraging nanoscale plasmonic modes to achieve reproducible enhancement of light. Nano Lett, 10(10). pp. 4150-4154. 10.1021/nl102443p. Retrieved from https://hdl.handle.net/10161/4095.
This is constructed from limited available data and may be imprecise. To cite this article, please review & use the official citation provided by the journal.
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Scholars@Duke

Chilkoti

Ashutosh Chilkoti

Alan L. Kaganov Distinguished Professor of Biomedical Engineering
Ashutosh Chilkoti is the Alan L. Kaganov Professor of Biomedical Engineering and Chair of the Department of Biomedical Engineering at Duke University. My research in biomolecular engineering and biointerface science focuses on the development of new molecular tools and technologies that borrow from molecular biology, protein engineering, polymer chemistry and surface science that we then exploit for the development of applications that span the range from bioseparations, plasmonic bio
Smith

David R. Smith

James B. Duke Distinguished Professor of Electrical and Computer Engineering
Dr. David R. Smith is currently the James B. Duke Professor of Electrical and Computer Engineering Department at Duke University. He is also Director of the Center for Metamaterials and Integrated Plasmonics at Duke and holds the positions of Adjunct Associate Professor in the Physics Department at the University of California, San Diego, and Visiting Professor of Physics at Imperial College, London. Dr. Smith received his Ph.D. in 1994 in Physics from the University of California, San D
Urzhumov

Yaroslav A. Urzhumov

Adjunct Assistant Professor in the Department of Electrical and Computer Engineering
<!--[if gte mso 9]> <![endif]--> <!--[if gte mso 9]> <![endif]-->Dr. Urzhumov is Adjunct Assistant Professor of ECE at Duke University, and also a Technologist at the Metamaterials Commercialization Center of Intellectual Ventures. Previously a research faculty at Duke, he works on applied and theoretical aspects of metama
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