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Proceedings Paper

Investigation of the blinking phenomenon in SERS
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Paper Abstract

Noble metal thin films have been used for surface enhanced Raman scattering (SERS) nearly since its inception, but only recently has single molecule detection (indicated by blinking of the Raman signal) been demonstrated on these types of films. It has been widely accepted that thin metal films provide an average enhancement of the Raman signal of only 106. However, with the combination of the use of high magnification objectives and sensitive detection a new view of thin metal films as a SERS substrate is emerging. Bolstered by these results, our lab has endeavored to further study the optical properties of vapor deposited Ag films. A Stokes-shifted blinking optical response has been observed in our lab in the absence of any specific adsorbate on a silver thin metal film surface. The origin of blinking behavior on Ag this films in the presence and absence of adsorbate was investigated under various environmental conditions. It is anticipated that this system will help elucidate the mechanistic relationship between blinking and in SERS.

Paper Details

Date Published: 14 October 2004
PDF: 9 pages
Proc. SPIE 5513, Physical Chemistry of Interfaces and Nanomaterials III, (14 October 2004); doi: 10.1117/12.560461
Show Author Affiliations
Michele L. Jacobson, Univ. of Colorado/Boulder (United States)
Kathy L. Rowlen, Univ. of Colorado/Boulder (United States)

Published in SPIE Proceedings Vol. 5513:
Physical Chemistry of Interfaces and Nanomaterials III
Gregory V. Hartland; Xiao-Yang Zhu, Editor(s)

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