Title: Plasmonic Ratchet Wheels: Switching Circular Dichroism by Arranging Chiral Nanostructures
Authors: Valev, Ventsislav ×
Smisdom, N
Silhanek, Alejandro
Declerq, B
Gillijns, W
Ameloot, M
Moshchalkov, Victor
Verbiest, Thierry #
Issue Date: Nov-2009
Publisher: American Chemical Society
Series Title: Nano Letters vol:9 issue:11 pages:3945-3948
Abstract: 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.
ISSN: 1530-6984
Publication status: published
KU Leuven publication type: IT
Appears in Collections:Molecular Imaging and Photonics
Solid State Physics and Magnetism Section
× corresponding author
# (joint) last author

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