Please use this identifier to cite or link to this item: http://hdl.handle.net/1942/14707
Title: Second harmonic hotspots at the edges of the unit cells in G-shaped gold nanostructures
Authors: Valev, Ventsislav K.
Osley, Edward J.
DE CLERCQ, Ben 
Silhanek, Alejandro V.
Warburton, Paul H.
Aktsipetrov, Oleg A.
AMELOOT, Marcel 
Moshchalkov, Victor V.
Verbiest, Thierry
Issue Date: 2012
Source: Boardman, Allan D.; Johnson, Nigel P.; Ziolkowski, Richard W. (Ed.). Proceedings of SPIE (Metamaterials VII), (ART N° 842311)
Series/Report: Proceedings of SPIE
Series/Report no.: 8423
Abstract: We report our latest results on second harmonic generation (SHG) microscopy from arrays of G-shaped chiral gold nanostructures. The nanostructures are arranged in unit cells composed of four Gs, each rotated at 90° with respect to its neighbors. As it has already been demonstrated, for linearly polarized light, these unit cells yield a pattern of four SHG hotspots. However, upon increasing the pitch of the nanostructured arrays, extra hotspots can be observed at the edges of the unit cells. While the origin of these extra hotspots remains to be elucidated, their position indicates a relationship to coupling behavior between the unit cells.
Document URI: http://hdl.handle.net/1942/14707
ISBN: 9780819491152
DOI: 10.1117/12.921523
ISI #: 000305694400017
Category: C1
Type: Proceedings Paper
Validations: ecoom 2014
Appears in Collections:Research publications

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