Document Type
Article
Publication Date
1-1-2019
Abstract
We report a strong correlation between the calculated broadband circular differential optical absorption (CDOA) and the geometric chirality of plasmonic meta-atoms with twodimensional chirality. We investigate this correlation using three common gold meta-atom geometries: L-shapes, triangles, and nanorod dimers, over a broad range of geometric parameters. We show that this correlation holds for both contiguous plasmonic meta-atoms and non-contiguous structures which support plasmonic coupling effects. A potential application for this correlation is the rapid optimization of plasmonic nanostructure for maximum broadband CDOA.
Publication Source (Journal or Book title)
Optics Express
First Page
5097
Last Page
5115
Recommended Citation
Wilson, J., Gutsche, P., Herrmann, S., Burger, S., & McPeak, K. (2019). Correlation of circular differential optical absorption with geometric chirality in plasmonic meta-atoms. Optics Express, 27 (4), 5097-5115. https://doi.org/10.1364/OE.27.005097