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Proceedings Paper

Gold-coated nanoporous substrates for SERS studies
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Paper Abstract

The Raman signal of inelastically scattered photons represents the fingerprint of a chemical molecule. Therefore, surface enhanced Raman spectroscopy (SERS) can be employed as the selective mechanism for an extraordinary optics sensor sensitive enough to detect a single molecule. Such sensitivity makes SERS ideal to detect chemicals at parts per billion to parts per trillion concentrations. SERS studies benefit from a signal enhancing substrate that is both reproducible and cost effective. Commercial substrates produced by electron beam lithography cost approximately $100 a piece to manufacture and can only be used once. The purpose of this study is to design a SERS substrate that offers enhancement equivalent to the commercial standard and is cheaper to produce. Experiments confirm that gold (Au) coated nano-pores can be used as an optimal SERS substrate offering a promising enhancement with durability that rival commercial products.

Paper Details

Date Published: 17 October 2012
PDF: 6 pages
Proc. SPIE 8465, Nanostructured Thin Films V, 84650P (17 October 2012); doi: 10.1117/12.928788
Show Author Affiliations
P. D. Robinson, Alabama A&M Univ. (United States)
A. Kassu, Alabama A&M Univ. (United States)
A. Sharma, Alabama A&M Univ. (United States)
T. Kukhtareva, Alabama A&M Univ. (United States)
P. Ruffin, U.S. Army Research, Development and Engineering Command (United States)
C. Brantley, U.S. Army Research, Development and Engineering Command (United States)
E. Edwards, U.S. Army Research, Development and Engineering Command (United States)

Published in SPIE Proceedings Vol. 8465:
Nanostructured Thin Films V
Tom G. Mackay; Yi-Jun Jen; Raúl J. Martín-Palma, Editor(s)

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