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2016FallSymposiumURCreativityEngagement has ended
Tuesday, December 6 • 10:15am - 12:00pm
Computational Modeling of Surface Enhancement

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Silver nanoparticles, when used as a Raman spectroscopy substrate, give rise to an effect known as surface enhancement. Oscillations of the conduction electrons on the surface of the silver nanoparticles enhance nearby electric fields, including the light incident on and scattered from these particles. This enhancement can increase the intensity of the light by a factor of up to ten billion. The cause of this enhancement, and the techniques and applications which take advantage of it, are still subjects of ongoing research. In particular, there is a strong dependence of surface enhancement on particle size an radius of curvature. Prior research projects suggest that analytical approaches to modeling surface enhancement are limited to the simplest possible shapes and smallest numbers of particles, and cannot be extended to realistic situations. This research applies computational electrodynamics to model silver nanostructures created by ferroelectric lithography.

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Tuesday December 6, 2016 10:15am - 12:00pm
Wilma Sherrill Center - Concourse