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Proceedings Paper

TEM study of nanofinger structures for surface enhanced Raman scattering
Author(s): Kate J. Norris; Steven J. Barcelo; Alexander M. Bratkovsky; Junce Zhang; David M. Fryauf; Gary A. Gibson; Zhang-Lin Zhou; Shih-Yuan Wang; Zhiyong Li; Nobuhiko P. Kobayashi
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Paper Abstract

Chemical sensing applications utilizing surface enhanced Raman spectroscopy (SERS) have drawn significant attention recently. However, developing a reliable, high performance SERS platform remains a challenge. A novel SERS substrate based on nanofingers was successfully demonstrated to provide large enhancement reliably and showed great promise for practical applications. Capillary forces bring the gold caps on the nanofingers into close proximity upon exposure to a solution containing molecules of interest, trapping molecules within the gaps and producing greatly enhanced Raman signals. Transmission electron microscopy (TEM) was used to characterize the structure of the nanofingers, in particular the gaps between finger tips to improve the fundamental understanding of the structural-performance relationship.

Paper Details

Date Published: 11 September 2013
PDF: 7 pages
Proc. SPIE 8809, Plasmonics: Metallic Nanostructures and Their Optical Properties XI, 88091P (11 September 2013); doi: 10.1117/12.2024304
Show Author Affiliations
Kate J. Norris, Univ. of California Santa Cruz (United States)
Univ. of California Santa Cruz - NASA Ames Research Ctr. (United States)
Steven J. Barcelo, Hewlett-Packard Labs. (United States)
Alexander M. Bratkovsky, Hewlett-Packard Labs. (United States)
Junce Zhang, Univ. of California, Santa Cruz (United States)
Univ. of California, Santa Cruz - NASA Ames Research Ctr. (United States)
David M. Fryauf, Univ. of California, Santa Cruz (United States)
Univ. of California, Santa Cruz - NASA Ames Research Ctr. (United States)
Gary A. Gibson, Hewlett-Packard Labs. (United States)
Zhang-Lin Zhou, Hewlett-Packard Labs. (United States)
Shih-Yuan Wang, Univ. of California, Santa Cruz (United States)
Univ. of California Santa Cruz - NASA Ames Research Ctr. (United States)
Zhiyong Li, Hewlett-Packard Labs. (United States)
Nobuhiko P. Kobayashi, Univ. of California Santa Cruz (United States)
Univ. of California Santa Cruz - NASA Ames Research Ctr. (United States)


Published in SPIE Proceedings Vol. 8809:
Plasmonics: Metallic Nanostructures and Their Optical Properties XI
Mark I. Stockman, Editor(s)

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