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

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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.

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CITATION STYLE

APA

Cumming, B. P., Schröder-Turk, G. E., Debbarma, S., & Gu, M. (2017). Bragg-mirror-like circular dichroism in bio-inspired quadruple-gyroid 4srs nanostructures. Light: Science and Applications, 6(1). https://doi.org/10.1038/lsa.2016.192

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