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Intense Optical Activity from Three-Dimensional Chiral Ordering of Plasmonic Nanoantennas

Authors

  • Dr. Andrés Guerrero-Martínez,

    1. Departamento de Quimica Fisica and Unidad Asociada CSIC, Universidade de Vigo, 36310 Vigo (Spain), Fax: (+34) 986-812-556
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  • Dr. Baptiste Auguié,

    1. Departamento de Quimica Fisica and Unidad Asociada CSIC, Universidade de Vigo, 36310 Vigo (Spain), Fax: (+34) 986-812-556
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  • Dr. José Lorenzo Alonso-Gómez,

    1. Departamento de Quimica Orgánica, Universidade de Vigo, 36310 Vigo (Spain)
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  • Dr. Zoran Džolić,

    1. Laboratory of Supramolecular and Nucleoside Chemistry, Division of Organic Chemistry and Biochemistry, Rudjer Boskovic Institute, 10002 Zagreb (Croatia)
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  • Sergio Gómez-Graña,

    1. Departamento de Quimica Fisica and Unidad Asociada CSIC, Universidade de Vigo, 36310 Vigo (Spain), Fax: (+34) 986-812-556
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  • Prof. Mladen Žinić,

    Corresponding author
    1. Laboratory of Supramolecular and Nucleoside Chemistry, Division of Organic Chemistry and Biochemistry, Rudjer Boskovic Institute, 10002 Zagreb (Croatia)
    • Laboratory of Supramolecular and Nucleoside Chemistry, Division of Organic Chemistry and Biochemistry, Rudjer Boskovic Institute, 10002 Zagreb (Croatia)
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  • Prof. M. Magdalena Cid,

    Corresponding author
    1. Departamento de Quimica Orgánica, Universidade de Vigo, 36310 Vigo (Spain)
    • Departamento de Quimica Orgánica, Universidade de Vigo, 36310 Vigo (Spain)
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  • Prof. Luis M. Liz-Marzán

    Corresponding author
    1. Departamento de Quimica Fisica and Unidad Asociada CSIC, Universidade de Vigo, 36310 Vigo (Spain), Fax: (+34) 986-812-556
    • Departamento de Quimica Fisica and Unidad Asociada CSIC, Universidade de Vigo, 36310 Vigo (Spain), Fax: (+34) 986-812-556
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  • F.J. García de Abajo (CSIC, Spain) is acknowledged for useful suggestions. We thank E. Solla (CACTI, U. Vigo) for carrying out the SEM measurements. A.G.M. and J.L.A.G. acknowledge the Juan de la Cierva Program (MICINN, Spain) and the Isidro Parga Pondal Program (Xunta de Galicia, Spain), respectively. This work has been funded by the Spanish Ministerio de Ciencia e Innovación (MAT2010-15374 and CTQ2010-18576), by the EU (NANODIRECT, grant number CP-FP 213948-2), and by the Croatian Ministry of Science Education and Sports (Project No. 098-0982904-2912).

Abstract

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Twisting nanoparticles: Plasmonic circular dichroism was experimentally obtained in chiral 3D organizations of gold nanorods obtained by self-assembly of the nanoantennas onto a fiber template with a twisted morphology. Numerical simulations based on coupled dipoles confirm the crucial role of gold nanorods in this intense circular dichroism.

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