Bragg-mirror-like circular dichroism in bio-inspired quadruple-gyroid 4srs nanostructures

Cumming, B, Schroder-Turk, G, Debbarma, S and Gu, M 2017, 'Bragg-mirror-like circular dichroism in bio-inspired quadruple-gyroid 4srs nanostructures', Light: Science and Applications, vol. 6, no. 1, e16192, pp. 1-8.


Document type: Journal Article
Collection: Journal Articles

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Title Bragg-mirror-like circular dichroism in bio-inspired quadruple-gyroid 4srs nanostructures
Author(s) Cumming, B
Schroder-Turk, G
Debbarma, S
Gu, M
Year 2017
Journal name Light: Science and Applications
Volume number 6
Issue number 1
Article Number e16192
Start page 1
End page 8
Total pages 8
Publisher Nature Publishing Group
Abstract The smooth and tailorable spectral response of Bragg mirrors has driven their pervasive use in optical systems requiring customizable spectral control of beam propagation. However, the simple nature of Bragg mirror reflection prevents their application to the control of important polarization states such as circular polarization. While helical and gyroid-based nanostructures exhibiting circular dichroism have been developed extensively to address this limitation, they are often restricted by the spectral inconsistency of their optical response. Here we present the fabrication and characterization of quadruple-gyroid 4srs nanostructures exhibiting bio-inspired Bragg-mirror-like circular dichroism: a smooth and uniform band of circular dichroism reminiscent of the spectrum of a simple multilayer Bragg-mirror. Furthermore, we demonstrate that the circular dichroism produced by 4srs nanostructures are robust to changes in incident angle and beam collimation, providing a new platform to create and engineer circular dichroism for functional circular polarization manipulation.
Subject Photonics, Optoelectronics and Optical Communications
Keyword(s) Bio-inspired
Bragg-mirror
Chirality
Circular dichroism
Gyroid
DOI - identifier 10.1038/lsa.2016.192
Copyright notice © 2017 The Author(s). This work is licensed under a Creative Commons AttributionNonCommercial-NoDerivs 4.0 International License. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in the credit line; if the material is not included under the Creative Commons license, users will need to obtain permission from the license holder to reproduce the material. To view a copy of this license, visit: http://creativecommons.org/licenses/by-nc-nd/4.0/
ISSN 2047-7538
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