Publication Type
Journal
Journal Name
Chemical Physics Letters
Publication Date
Page Numbers
123 to 126
Volume
435
Issue
1-3
Abstract
Light transmission and electric field enhancement are caculated for a cylindrical aperture in a silver slab resting on a glass substrate. We find that these properties are influenced significantly by the presence of the substrate. The results suggest that variations in the local dielectric alter the properties of localized surface plasmons that drive the field enhancement and transmission.