GaAs-based nanowires partially covered with gold give rise to optical circular dichroism

Alessandro Belardini; Grigore Leahu; Emilija Petronijevic; Marco Centini; Roberto Li Voti; Concita Sibilia; Teemu Hakkarainen; Eero Koivusalo; Marcelo Rizzo Piton; Marcelo Rizzo Piton; Soile Suomalainen; Mircea Guina

2017 European Conference on Lasers and Electro-Optics and European Quantum Electronics Conference
(Optica Publishing Group, 2017),
paper CK_9_5

GaAs-based nanowires partially covered with gold give rise to optical circular dichroism

Alessandro Belardini, Grigore Leahu, Emilija Petronijevic, Marco Centini, Roberto Li Voti, Concita Sibilia, Teemu Hakkarainen, Eero Koivusalo, Marcelo Rizzo Piton, Soile Suomalainen, and Mircea Guina

The European Conference on Lasers and Electro-Optics 2017

Munich Germany
25–29 June 2017
ISBN: 978-1-5090-6736-7

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Photonic Nanowires and Fibers (CK_9)

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A. Belardini, G. Leahu, E. Petronijevic, M. Centini, R. L. Voti, C. Sibilia, T. Hakkarainen, E. Koivusalo, M. R. Piton, S. Suomalainen, and M. Guina, "GaAs-based nanowires partially covered with gold give rise to optical circular dichroism," in 2017 European Conference on Lasers and Electro-Optics and European Quantum Electronics Conference, (Optica Publishing Group, 2017), paper CK_9_5.

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Abstract

Hybridized nanostructures composed by metals and dielectrics, semiconductors or organics offer new opportunities achieving new functionalities in nonlinear optics, plasmonics, sensing [1-4]. In particular GaAs-AlGaAs-GaAs core-shell-supershell nanowires (NWs) fabricated by self-catalyzed growth on Si substrates were partially covered with gold, thus producing a symmetry breaking in the sample geometry that induces an “extrinsic” chiral response.

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