Journal
NANO LETTERS
Volume 9, Issue 11, Pages 3945-3948Publisher
AMER CHEMICAL SOC
DOI: 10.1021/nl9021623
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Funding
- Fund for scientific research Flanders (FWO-V)
- University of Leuven (GOA)
- Flemish government
- Belgian Inter-University
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We demonstrate circular dichroism (CD) in the second harmonic generation (SHG) signal from chiral assemblies of G-shaped nanostructures made of gold. The arrangement of the G shapes is crucial since upon reordering them the SHG-CD effect disappears. Microscopy reveals SHG hotspots assemblies, which originate in enantiomerically sensitive plasmon modes, having the novel property of exhibiting a chiral geometry themselves in relation with the handedness of the material. These results open new frontiers in studying chirality.
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