Plasmonic nanohelix metamaterials with tailorable giant circular dichroism
2013
Article
pf
Plasmonic nanohelix arrays are shown to interact with electromagnetic fields in ways not typically seen with ordinary matter. Chiral metamaterials (CMMs) with feature sizes small with respect to the wavelength of visible light are a promising route to experimentally achieve such phenomena as negative refraction without the need for simultaneously negative e and mu. Here we not only show that giant circular dichroism in the visible is achievable with hexagonally arranged plasmonic nanohelix arrays, but that we can precisely tune the optical activity via morphology and lattice spacing. The discrete dipole approximation is implemented to support experimental data. (C) 2013 AIP Publishing LLC.
Featured cover article.
Author(s): | Gibbs, John G. and Mark, Andrew G. and Eslami, Sahand and Fischer, Peer |
Journal: | APPLIED PHYSICS LETTERS |
Volume: | 103 |
Number (issue): | 21 |
Year: | 2013 |
Department(s): | Micro, Nano, and Molecular Systems |
Bibtex Type: | Article (article) |
DOI: | 10.1063/1.4829740 |
Note: | Featured cover article. |
BibTex @article{ISI:000327590400061, title = {Plasmonic nanohelix metamaterials with tailorable giant circular dichroism}, author = {Gibbs, John G. and Mark, Andrew G. and Eslami, Sahand and Fischer, Peer}, journal = {APPLIED PHYSICS LETTERS}, volume = {103}, number = {21}, year = {2013}, note = {Featured cover article.}, doi = {10.1063/1.4829740} } |