Second Harmonic Generation Circular Dichroism from Self-Ordered Hybrid Plasmonic–Photonic Nanosurfaces
Journal article published in 2013 by
Alessandro Belardini,
Alessio Benedetti,
Marco Centini,
Grigore Leahu,
Francesco Mura,
Simona Sennato,
Concita Sibilia,
Valentina Robbiano,
Maria Caterina Giordano,
Christian Martella 
,
Francesco Buatier de Mongeot ,
Davide Comoretto
,
Francesco Buatier de Mongeot ,
Davide Comoretto
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Abstract
Hybrid structures composed by self-ordered dielectric nanospheres and partially covered by gold nanocrescents, produce efficient second harmonic generation signals due to the cooperative effect of localized plasmon excitation and 2D Bragg gratings. Asymmetries in the geometric shape of the gold nanocrescents induce a circularly polarized optical response. © 2013 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim.