Chiral Surface Lattice Resonances.

Autor: Goerlitzer ESA; Institute of Particle Technology, Friedrich-Alexander University Erlangen-Nürnberg, Cauerstraße 4, Erlangen, D-91058, Germany., Mohammadi R; Institute of Particle Technology, Friedrich-Alexander University Erlangen-Nürnberg, Cauerstraße 4, Erlangen, D-91058, Germany., Nechayev S; Max Planck Institute for the Science of Light, Staudtstr. 2, Erlangen, D-91058, Germany.; Institute of Optics, Information and Photonics, Friedrich-Alexander University Erlangen-Nürnberg, Staudtstr. 7/B2, Erlangen, D-91058, Germany., Volk K; Institut für Physikalische Chemie I: Kolloide und Nanooptik, Heinrich-Heine-Universität Düsseldorf, Universitätsstr. 1, Düsseldorf, D-40225, Germany., Rey M; Institute of Particle Technology, Friedrich-Alexander University Erlangen-Nürnberg, Cauerstraße 4, Erlangen, D-91058, Germany., Banzer P; Max Planck Institute for the Science of Light, Staudtstr. 2, Erlangen, D-91058, Germany.; Institute of Optics, Information and Photonics, Friedrich-Alexander University Erlangen-Nürnberg, Staudtstr. 7/B2, Erlangen, D-91058, Germany., Karg M; Institut für Physikalische Chemie I: Kolloide und Nanooptik, Heinrich-Heine-Universität Düsseldorf, Universitätsstr. 1, Düsseldorf, D-40225, Germany., Vogel N; Institute of Particle Technology, Friedrich-Alexander University Erlangen-Nürnberg, Cauerstraße 4, Erlangen, D-91058, Germany.
Jazyk: angličtina
Zdroj: Advanced materials (Deerfield Beach, Fla.) [Adv Mater] 2020 Jun; Vol. 32 (22), pp. e2001330. Date of Electronic Publication: 2020 Apr 21.
DOI: 10.1002/adma.202001330
Abstrakt: Collective excitation of periodic arrays of metallic nanoparticles by coupling localized surface plasmon resonances to grazing diffraction orders leads to surface lattice resonances with narrow line width. These resonances may find numerous applications in optical sensing and information processing. Here, a new degree of freedom of surface lattice resonances is experimentally investigated by demonstrating handedness-dependent excitation of surface lattice resonances in arrays of chiral plasmonic crescents. The self-assembly of particles used as mask and modified colloidal lithography is applied to produce arrays of planar and 3D gold crescents over large areas. The excitation of surface lattice resonances as a function of the interparticle distance and the degree of order within the arrays is investigated. The chirality of the individual 3D crescents leads to the formation of chiral lattice modes, that is, surface lattice resonances that exhibit optical activity.
(© 2020 The Authors. Published by WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim.)
Databáze: MEDLINE
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