Plasmonic Ratchet Wheels: Switching Circular Dichroism by Arranging Chiral Nanostructures

Please use this identifier to cite or link to this item: http://hdl.handle.net/1942/10302

Title:	Plasmonic Ratchet Wheels: Switching Circular Dichroism by Arranging Chiral Nanostructures
Authors:	Valev, V. K. SMISDOM, Nick Silhanek, A. V. DE CLERCQ, Ben Gillijns, W. AMELOOT, Marcel Moshchalkov, V. V. Verbiest, T.
Issue Date:	2009
Publisher:	AMER CHEMICAL SOC
Source:	NANO LETTERS, 9(11). p. 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.
Notes:	[Valev, V. K.; Silhanek, A. V.; Gillijns, W.; Moshchalkov, V. V.] Katholieke Univ Leuven, INPAC, Nanoscale Superconduct & Magnetism & Pulsed Field, B-3001 Heverlee, Belgium. [Smisdom, N.; De Clercq, B.; Ameloot, M.] Univ Limburg, BIOMED, Univ Hasselt & Transnatl, B-3590 Diepenbeek, Belgium.
Document URI:	http://hdl.handle.net/1942/10302
ISSN:	1530-6984
e-ISSN:	1530-6992
DOI:	10.1021/nl9021623
ISI #:	000271566400048
Category:	A1
Type:	Journal Contribution
Validations:	ecoom 2010
Appears in Collections:	Research publications

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