Large-Area 3D Plasmonic Crescents with Tunable Chirality

Journal article


Publication Details

Author(s): Görlitzer E, Mohammadi R, Nechayev S, Banzer P, Vogel N
Journal: Advanced Optical Materials
Publication year: 2019
ISSN: 2195-1071


Abstract

Chiral plasmonic nanostructures hold promise for enhanced chiral sensing and circular dichroism spectroscopy of chiral molecules. It is therefore of interest to fabricate chiral plasmonic nanostructures with tailored chiroptical properties over large areas with reasonable effort. Here, a colloidal lithography approach is used to produce macroscopic arrays of sub-micrometer 3D chiral plasmonic crescent structures over areas >1 cm
2
. The chirality originates from symmetry breaking by the introduction of a step within the crescent structure. This step is produced by an intermediate layer of silicon dioxide onto which the metal crescent structure is deposited. It is experimentally demonstrated that the chiroptical properties in such structures can be tailored by changing the position of the step within the crescent. These experiments are complemented by finite element simulations and the application of a multipole expansion to elucidate the physical origin of the circular dichroism of the crescent structures.


FAU Authors / FAU Editors

Banzer, Peter Prof. Dr.
Professur für Experimentalphysik
Görlitzer, Eric
Lehrstuhl für Feststoff- und Grenzflächenverfahrenstechnik
Vogel, Nicolas Prof. Dr.
Professur für Partikelsynthese


External institutions with authors

Max-Planck-Institut für die Physik des Lichts (MPL) / Max Planck Institute for the Science of Light


How to cite

APA:
Görlitzer, E., Mohammadi, R., Nechayev, S., Banzer, P., & Vogel, N. (2019). Large-Area 3D Plasmonic Crescents with Tunable Chirality. Advanced Optical Materials. https://dx.doi.org/10.1002/adom.201801770

MLA:
Görlitzer, Eric, et al. "Large-Area 3D Plasmonic Crescents with Tunable Chirality." Advanced Optical Materials (2019).

BibTeX: 

Last updated on 2019-05-06 at 12:38