Reference : Plasmonic Ratchet Wheels: Switching Circular Dichroism by Arranging Chiral Nanostructures
Scientific journals : Article
Physical, chemical, mathematical & earth Sciences : Physics
http://hdl.handle.net/2268/102549
Plasmonic Ratchet Wheels: Switching Circular Dichroism by Arranging Chiral Nanostructures
English
Valev, V. K. [> > > >]
Smisdom, N. [> > > >]
Silhanek, Alejandro mailto [Université de Liège - ULg > > ISLV : Enseignements facultaires des langues étrangères]
De Clercq, B. [ > > ]
Gillijns, W. [> > > >]
Ameloot, M. [> > > >]
Moshchalkov, V. V. [> > > >]
Verbiest, T. [ > > ]
2009
Nano Letters
American Chemical Society
9
11
3945-3948
Yes (verified by ORBi)
International
1530-6984
1530-6992
Washington
DC
[en] photonics ; plasmonics
[en] 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.
Researchers
http://hdl.handle.net/2268/102549
10.1021/nl9021623

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