Substrate-Induced Chirality in an Individual Nanostructure
| Autor: | René Barczyk, Peter Banzer, Uwe Mick, Sergey Nechayev |
|---|---|
| Rok vydání: | 2019 |
| Předmět: |
Circular dichroism
Materials science Nanostructure FOS: Physical sciences Physics::Optics Nanoparticle Nanotechnology Applied Physics (physics.app-ph) Physics - Classical Physics 02 engineering and technology Substrate (electronics) 01 natural sciences 010309 optics Condensed Matter::Materials Science 0103 physical sciences Electrical and Electronic Engineering Classical Physics (physics.class-ph) Physics - Applied Physics 021001 nanoscience & nanotechnology Atomic and Molecular Physics and Optics Electronic Optical and Magnetic Materials 0210 nano-technology Chirality (chemistry) Optics (physics.optics) Physics - Optics Biotechnology |
| Zdroj: | ACS Photonics |
| ISSN: | 2330-4022 |
| DOI: | 10.1021/acsphotonics.9b00748 |
| Popis: | We experimentally investigate the chiral optical response of an individual nanostructure consisting of three equally sized spherical nanoparticles made of different materials and arranged in \ang{90} bent geometry. Placing the nanostructure on a substrate converts its morphology from achiral to chiral. Chirality leads to pronounced differential extinction, i.e., circular dichroism and optical rotation, or equivalently, circular birefringence, which would be strictly forbidden in the absence of a substrate or heterogeneity. This first experimental observation of the substrate-induced break of symmetry in an individual heterogeneous nanostructure sheds new light on chiral light-matter interactions at substrate-nanostructure interfaces. Manuscript and Supplemental Material, 6+9 pages, 3+4 figures |
| Databáze: | OpenAIRE |
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