Chiral optical response of planar and symmetric nanotrimers enabled by heteromaterial selection
Banzer P, Wozniak P, Mick U, De Leon I, Boyd RW (2016)
Publication Status: Published
Publication Type: Journal article, Original article
Publication year: 2016
Journal
Publisher: Nature Publishing Group
Book Volume: 7
Article Number: 13117
DOI: 10.1038/ncomms13117
Open Access Link: http://www.nature.com/articles/ncomms13117
Abstract
Chirality is an intriguing property of certain molecules, materials or artificial nanostructures, which allows them to interact with the spin angular momentum of the impinging light field. Due to their chiral geometry, they can distinguish between left-and right-hand circular polarization states or convert them into each other. Here we introduce an approach towards optical chirality, which is observed in individual two-dimensional and geometrically mirror-symmetric nanostructures. In this scheme, the chiral optical response is induced by the chosen heterogeneous material composition of a particle assembly and the corresponding resonance behaviour of the constituents it is built from, which breaks the symmetry of the system. As a proof of principle, we investigate such a structure composed of individual silicon and gold nanoparticles both experimentally, as well as numerically. Our proposed concept constitutes an approach for designing two-dimensional chiral media tailored at the nanoscale, allowing for high tunability of their optical response.
Authors with CRIS profile
Peter Banzer
Lehrstuhl für Experimentalphysik
Pawel Wozniak
Lehrstuhl für Experimentalphysik
Uwe Mick
Lehrstuhl für Experimentalphysik
Additional Organisation(s)
Involved external institutions
Canada (CA)How to cite
APA:
Banzer, P., Wozniak, P., Mick, U., De Leon, I., & Boyd, R.W. (2016). Chiral optical response of planar and symmetric nanotrimers enabled by heteromaterial selection. Nature Communications, 7. https://doi.org/10.1038/ncomms13117
MLA:
Banzer, Peter, et al. "Chiral optical response of planar and symmetric nanotrimers enabled by heteromaterial selection." Nature Communications 7 (2016).
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