Structure-Dependent Chiroptical Properties of Twisted Multilayered Silver Nanowire Assemblies - Université de Lorraine Access content directly
Journal Articles Nano Letters Year : 2021

Structure-Dependent Chiroptical Properties of Twisted Multilayered Silver Nanowire Assemblies

Abstract

The optical properties of chiral plasmonic metasurfaces depend strongly on their architecture, in particular the orientation and spacing between the individual building blocks assembled into large arrays. However, methods to obtain chiral metamaterials with fully tunable chiroptical properties in the UV, visible and near infrared range are scarce. Here, we show that the chiroptical properties of silver nanowires assembled in helical nanostructures by Grazing Incidence Spraying and Layer-by-Layer assembly can be finely tuned over a broad wavelength range using simple design principles. The angle between the oriented nanowire layers controls the intensity of the circular dichroism, reaching ellipticity values higher than 13° and g-factor values up to 1.6, while the shape of the circular dichroism spectra depends strongly on the spacing between the layers which can be tuned at the nm-scale. The structure-dependent optical properties of the assembly are successfully modeled using a transfer matrix approach.
Fichier principal
Vignette du fichier
nanolett.pdf (1.02 Mo) Télécharger le fichier
Origin : Files produced by the author(s)

Dates and versions

hal-03547843 , version 1 (28-01-2022)

Identifiers

Cite

Wenbing Wu, Yann Battie, Vincent Lemaire, Gero Decher, Matthias Pauly. Structure-Dependent Chiroptical Properties of Twisted Multilayered Silver Nanowire Assemblies. Nano Letters, 2021, 21 (19), pp.8298-8303. ⟨10.1021/acs.nanolett.1c02812⟩. ⟨hal-03547843⟩
24 View
133 Download

Altmetric

Share

Gmail Facebook X LinkedIn More