DataVXAdvanced MaterialsPaper
journal article·2019-08Open access

3D Helix Engineering in Chiral Photonic Materials

Augustinus J. J. Kragt, Davey C. Hoekstra, Sjoerd Stallinga, Dirk J. Broer, Albertus P. H. J. Schenning

Advanced Materials· Volume 31· Issue 33
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Source abstract

Abstract

Abstract Engineering the helical structure of chiral photonic materials in three dimensions remains a challenge. 3D helix engineered photonic materials are fabricated by local stratification in a photopolymerizable chiral nematic liquid crystal. The obtained chiral photonic materials reflect both handedness of circular polarized light and show super‐reflectivity. Simulations match the experimentally observed photonic properties and reveal a distorted helical structure. 3D engineered polymer films can be made that reflect both left‐ and right handed circular and linear polarized light dependent and exhibit a changing color contrast upon altering the polarization of incident light. Hence, these 3D engineered photonic materials are of interest for new and emerging applications ranging from anti‐counterfeit labels and data encryption to aesthetics and super‐reflective films.
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Research context

Polymers

OpenAlex topics: Liquid Crystal Research Advancements · Photonic Crystals and Applications · Metamaterials and Metasurfaces Applications

SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.

Affiliations

Stimuli‐responsive Functional Materials and Devices Department of Chemical Engineering and Chemistry Eindhoven University of Technology Den Dolech 2 5600 MB Eindhoven The Netherlands

SCNU‐TUE Joint Laboratory of Device Integrated Responsive Materials (DIRM) South China Normal University Guangzhou Higher Education Mega Center 510006 Guangzhou China

Institute for Complex Molecular Systems Eindhoven University of Technology Den Dolech 2 5600 MB Eindhoven The Netherlands

Department of Imaging Physics Delft University of Technology Lorentzweg 1 2628 CJ Delft The Netherlands

Funding

Nederlandse Organisatie voor Wetenschappelijk Onderzoek · National Natural Science Foundation of China · Guangdong Science and Technology Department · South China Normal University

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