Surface Structure Dependent Circular Dichroism in Single and Double Gyroid Metamaterials

Bryan M Cote; William Lenart; Christopher J Ellison; Vivian E Ferry

doi:10.1002/adom.202200363

Surface Structure Dependent Circular Dichroism in Single and Double Gyroid Metamaterials

Bryan M Cote, William Lenart, Christopher J Ellison, Vivian E Ferry

Research output: Contribution to journal › Article › peer-review

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Abstract

Gyroid optical metamaterials consist of triply periodic chiral networks that are attractive photonic structures due to the combination of intriguing optical properties and spontaneous self-assembly-based fabrication routes using materials such as block copolymers. A previous experimental investigation found that gyroid metamaterials support strong circular dichroism, beyond what simulations only considering bulk interactions predict. In this work, simulations are used to unravel the contributions of bulk and surface interactions on the circular dichroism spectra of silver-infilled gyroid metamaterial films. It is found that surface interactions have a significant, often dominating, contribution to circular dichroism. The relative strength of bulk and surface contributions can be tuned by controlling the crystallographic orientation, termination plane of the film, thickness, metal volume fraction, and defect density. Importantly, the dominance of surface interactions allows double gyroids, which are achiral in the bulk, to support strong circular dichroism responses with g-factor magnitudes as large as 0.25.

Original language	English (US)
Article number	2200363
Journal	Advanced Optical Materials
Volume	10
Issue number	13
DOIs	https://doi.org/10.1002/adom.202200363
State	Published - Jul 4 2022

Bibliographical note

Funding Information:
The authors thank Dr. Mahesh Mahanthappa, Dr. Jinwoo Oh, and Szu‐Ming Yang for helpful scientific discussions. The authors also thank Lisa Zeeb for their assistance in figure design. This work was supported primarily by the National Science Foundation through the University of Minnesota MRSEC under Award No. DMR‐2011401. The authors acknowledge the Minnesota Supercomputing Institute (MSI) at the University of Minnesota for providing resources that contributed to the research results reported within this paper.

Funding Information:
The authors thank Dr. Mahesh Mahanthappa, Dr. Jinwoo Oh, and Szu-Ming Yang for helpful scientific discussions. The authors also thank Lisa Zeeb for their assistance in figure design. This work was supported primarily by the National Science Foundation through the University of Minnesota MRSEC under Award No. DMR-2011401. The authors acknowledge the Minnesota Supercomputing Institute (MSI) at the University of Minnesota for providing resources that contributed to the research results reported within this paper.

Publisher Copyright:
© 2022 The Authors. Advanced Optical Materials published by Wiley-VCH GmbH.

Keywords

chirality
circular dichroism
metamaterials

MRSEC Support

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title = "Surface Structure Dependent Circular Dichroism in Single and Double Gyroid Metamaterials",

abstract = "Gyroid optical metamaterials consist of triply periodic chiral networks that are attractive photonic structures due to the combination of intriguing optical properties and spontaneous self-assembly-based fabrication routes using materials such as block copolymers. A previous experimental investigation found that gyroid metamaterials support strong circular dichroism, beyond what simulations only considering bulk interactions predict. In this work, simulations are used to unravel the contributions of bulk and surface interactions on the circular dichroism spectra of silver-infilled gyroid metamaterial films. It is found that surface interactions have a significant, often dominating, contribution to circular dichroism. The relative strength of bulk and surface contributions can be tuned by controlling the crystallographic orientation, termination plane of the film, thickness, metal volume fraction, and defect density. Importantly, the dominance of surface interactions allows double gyroids, which are achiral in the bulk, to support strong circular dichroism responses with g-factor magnitudes as large as 0.25.",

keywords = "chirality, circular dichroism, metamaterials",

author = "Cote, {Bryan M} and William Lenart and Ellison, {Christopher J} and Ferry, {Vivian E}",

note = "Funding Information: The authors thank Dr. Mahesh Mahanthappa, Dr. Jinwoo Oh, and Szu‐Ming Yang for helpful scientific discussions. The authors also thank Lisa Zeeb for their assistance in figure design. This work was supported primarily by the National Science Foundation through the University of Minnesota MRSEC under Award No. DMR‐2011401. The authors acknowledge the Minnesota Supercomputing Institute (MSI) at the University of Minnesota for providing resources that contributed to the research results reported within this paper. Funding Information: The authors thank Dr. Mahesh Mahanthappa, Dr. Jinwoo Oh, and Szu-Ming Yang for helpful scientific discussions. The authors also thank Lisa Zeeb for their assistance in figure design. This work was supported primarily by the National Science Foundation through the University of Minnesota MRSEC under Award No. DMR-2011401. The authors acknowledge the Minnesota Supercomputing Institute (MSI) at the University of Minnesota for providing resources that contributed to the research results reported within this paper. Publisher Copyright: {\textcopyright} 2022 The Authors. Advanced Optical Materials published by Wiley-VCH GmbH.",

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AU - Ferry, Vivian E

N1 - Funding Information: The authors thank Dr. Mahesh Mahanthappa, Dr. Jinwoo Oh, and Szu‐Ming Yang for helpful scientific discussions. The authors also thank Lisa Zeeb for their assistance in figure design. This work was supported primarily by the National Science Foundation through the University of Minnesota MRSEC under Award No. DMR‐2011401. The authors acknowledge the Minnesota Supercomputing Institute (MSI) at the University of Minnesota for providing resources that contributed to the research results reported within this paper. Funding Information: The authors thank Dr. Mahesh Mahanthappa, Dr. Jinwoo Oh, and Szu-Ming Yang for helpful scientific discussions. The authors also thank Lisa Zeeb for their assistance in figure design. This work was supported primarily by the National Science Foundation through the University of Minnesota MRSEC under Award No. DMR-2011401. The authors acknowledge the Minnesota Supercomputing Institute (MSI) at the University of Minnesota for providing resources that contributed to the research results reported within this paper. Publisher Copyright: © 2022 The Authors. Advanced Optical Materials published by Wiley-VCH GmbH.

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N2 - Gyroid optical metamaterials consist of triply periodic chiral networks that are attractive photonic structures due to the combination of intriguing optical properties and spontaneous self-assembly-based fabrication routes using materials such as block copolymers. A previous experimental investigation found that gyroid metamaterials support strong circular dichroism, beyond what simulations only considering bulk interactions predict. In this work, simulations are used to unravel the contributions of bulk and surface interactions on the circular dichroism spectra of silver-infilled gyroid metamaterial films. It is found that surface interactions have a significant, often dominating, contribution to circular dichroism. The relative strength of bulk and surface contributions can be tuned by controlling the crystallographic orientation, termination plane of the film, thickness, metal volume fraction, and defect density. Importantly, the dominance of surface interactions allows double gyroids, which are achiral in the bulk, to support strong circular dichroism responses with g-factor magnitudes as large as 0.25.

AB - Gyroid optical metamaterials consist of triply periodic chiral networks that are attractive photonic structures due to the combination of intriguing optical properties and spontaneous self-assembly-based fabrication routes using materials such as block copolymers. A previous experimental investigation found that gyroid metamaterials support strong circular dichroism, beyond what simulations only considering bulk interactions predict. In this work, simulations are used to unravel the contributions of bulk and surface interactions on the circular dichroism spectra of silver-infilled gyroid metamaterial films. It is found that surface interactions have a significant, often dominating, contribution to circular dichroism. The relative strength of bulk and surface contributions can be tuned by controlling the crystallographic orientation, termination plane of the film, thickness, metal volume fraction, and defect density. Importantly, the dominance of surface interactions allows double gyroids, which are achiral in the bulk, to support strong circular dichroism responses with g-factor magnitudes as large as 0.25.

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Surface Structure Dependent Circular Dichroism in Single and Double Gyroid Metamaterials

Abstract

Bibliographical note

Keywords

MRSEC Support

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IRG-2: Mesoscale Network Materials

University of Minnesota Materials Research Science and Engineering Center (DMR-2011401)

Supporting data for Surface Structure Dependent Circular Dichroism in Single and Double Gyroid Metamaterials

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Surface Structure Dependent Circular Dichroism in Single and Double Gyroid Metamaterials

Abstract

Bibliographical note

Keywords

MRSEC Support

Publisher link

Find It

Other files and links

Fingerprint

Projects

IRG-2: Mesoscale Network Materials

University of Minnesota Materials Research Science and Engineering Center (DMR-2011401)

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Supporting data for Surface Structure Dependent Circular Dichroism in Single and Double Gyroid Metamaterials

Cite this