October 25, 2022 - 3:00pm
Where: 362B (ACS building)
When: 15:00-16:00
Speaker: Ben Latham
Title: Investigating Plasmonic Scattering by a Sphere using Enriched Finite Element Methods
Abstract: We will investigate scattering by as sphere under surface plasmonic conditions. Surface plasmons are highly oscillatory waves localized to the interface between a dielectric (air, vacuum) and a metal (gold, silver). As surface plasmons lead to large field enhancements, they are useful for high-resolution imaging and other applications. It is challenging to capture them numerically, and standard methods do not succeed. In the context of a spherical scatterer, we identify where plasmonic excitations can arise, and investigate FEM-based methods for addressing the numerical issues.
