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Proceedings Paper

Structural and optical characterization of single nanoparticles and single molecule SERS
Author(s): Samuel L. Kleinman; Julia M. Bingham; Anne-Isabelle Henry; Kristin L. Wustholz; Richard P. Van Duyne
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Paper Abstract

Although plasmonic nanoparticles are widely utilized in spectroscopy and sensing applications, a quantitative structure-function relationship is lacking. In this proceeding, we discuss measurements of single noble metal nanoparticles using localized surface plasmon resonance (LSPR) spectroscopy, surface-enhanced Raman spectroscopy (SERS), and transmission electron microscopy (TEM) to elucidate structure-function relationships. A recently developed LSPR imaging spectroscopy instrument with an extremely fast camera enables measurement of diffusion constants for individual silver nanoprisms dispersed in water-paving the way for plasmonic particles as dynamic labels in biological systems. Correlated studies involving two or all three of these techniques relate optical properties of the same nanoparticle to its structure. Lastly, single-molecule surface-enhanced Raman spectroscopy of Rhodamine 6G is explored on lithographically fabricated plasmonic structures.

Paper Details

Date Published: 11 September 2010
PDF: 10 pages
Proc. SPIE 7757, Plasmonics: Metallic Nanostructures and Their Optical Properties VIII, 77570J (11 September 2010); doi: 10.1117/12.864654
Show Author Affiliations
Samuel L. Kleinman, Northwestern Univ. (United States)
Julia M. Bingham, Northwestern Univ. (United States)
Anne-Isabelle Henry, Northwestern Univ. (United States)
Kristin L. Wustholz, Northwestern Univ. (United States)
Richard P. Van Duyne, Northwestern Univ. (United States)


Published in SPIE Proceedings Vol. 7757:
Plasmonics: Metallic Nanostructures and Their Optical Properties VIII
Mark I. Stockman, Editor(s)

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