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

Light, Science & Applications
Benjamin P CummingMin Gu

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.

References

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Citations

Sep 27, 2019·Nature Communications·Yejing LiuJoel K W Yang
Apr 7, 2017·Optics Express·Johannes HielscherGerd E Schröder-Turk
Feb 15, 2018·Optics Letters·Benjamin P CummingMin Gu
Mar 7, 2019·Light, Science & Applications·Chaoquan HuWeitao Zheng
Dec 10, 2019·Light, Science & Applications·Patrick S Salter, Martin J Booth
Jun 19, 2021·Applied Optics·Luis Oscar González-Siu, Neil C Bruce
Jul 16, 2021·Applied Optics·Luis Oscar González-Siu, Neil C Bruce

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Methods Mentioned

BETA
circular dichroism
circular
infrared spectroscopy

Software Mentioned

MPB
CST Microwave Studio

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