Circularly Polarized Structural Color Pigments Tunable Across the Full Visible Spectrum [* Cross-Reference *]

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Deniz Işınsu Avşar; Jan P. F. Lagerwall, 2026, "Circularly Polarized Structural Color Pigments Tunable Across the Full Visible Spectrum [* Cross-Reference *]", https://lore.list.lu/citation?persistentId=perma:LIST.EBATR8, LIST Open Repository, V1

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Description	Periodically structured materials offer an attractive means to generate color by selective reflection but suffer from angle-dependence and generally require a black background. The former may be solved by molding the material into spheres but then an index-matching binder is often required to avoid Mie scattering that otherwise dwarfs the structural color. However, this leads to blueshifted reflections that reduce color purity. Here it is shown that shells of polymerized cholesteric liquid crystal infused with dye (dCSRs) solve these problems while adding circular polarization contrast. The dye absorbs Mie-scattered light, rendering binder and black background unnecessary. Moreover, refraction at the air–dCSR interface shrinks the bandwidth of selective reflections, turning dCSRs into discrete pixels of structural color, easily tunable across the visible spectrum. By mixing red, green and blue dCSRs, non-spectral colors can be generated, allowing dCSRs to truly compete with traditional dyes. By arranging dCSRs onto a background with identical color, fixing and protecting them with a matte clearcoat, graphical information like text or QR-code-like patterns are encoded such that the information is camouflaged to the human eye. Only through a circular polarizer is the pattern revealed, with extraordinary contrast, of great use for robotics and Augmented Reality. (2026-01-30) *This entry has been automatically imported via OpenAlex by LIST harvest scripts. Please refer to https://doi.org/10.1002/adom.202503818 for the original and latest version of the publication* (2026-07-01)
Subject	Astronomy and Astrophysics; Physics
Keyword	Polarizer, Structural coloration, Visible spectrum, Circular polarization, Polarization (electrochemistry), Rendering (computer graphics), Liquid crystal, Camouflage, Color rendering index, Primary color
License/Data Use Agreement	CC BY 4.0


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Citation Metadata

Persistent Identifier	perma:LIST.EBATR8
Publication Date	2026-07-06
Title	Circularly Polarized Structural Color Pigments Tunable Across the Full Visible Spectrum [* Cross-Reference *]
Other Identifier	https://doi.org/10.1002/adom.202503818 OpenAlex ID: https://openalex.org/W7126237836
Author	Deniz Işınsu Avşar (University of Luxembourg, Luxembourg Institute of Science and Technology, Luxembourg Institute of Socio-Economic Research) Jan P. F. Lagerwall (University of Luxembourg, Luxembourg Institute of Science and Technology, Luxembourg Institute of Socio-Economic Research) - ORCID: https://orcid.org/0000-0001-9753-1147
Point of Contact	Use email button above to contact. LIST QDKM (LIST)
Description	Periodically structured materials offer an attractive means to generate color by selective reflection but suffer from angle-dependence and generally require a black background. The former may be solved by molding the material into spheres but then an index-matching binder is often required to avoid Mie scattering that otherwise dwarfs the structural color. However, this leads to blueshifted reflections that reduce color purity. Here it is shown that shells of polymerized cholesteric liquid crystal infused with dye (dCSRs) solve these problems while adding circular polarization contrast. The dye absorbs Mie-scattered light, rendering binder and black background unnecessary. Moreover, refraction at the air–dCSR interface shrinks the bandwidth of selective reflections, turning dCSRs into discrete pixels of structural color, easily tunable across the visible spectrum. By mixing red, green and blue dCSRs, non-spectral colors can be generated, allowing dCSRs to truly compete with traditional dyes. By arranging dCSRs onto a background with identical color, fixing and protecting them with a matte clearcoat, graphical information like text or QR-code-like patterns are encoded such that the information is camouflaged to the human eye. Only through a circular polarizer is the pattern revealed, with extraordinary contrast, of great use for robotics and Augmented Reality. (2026-01-30) *This entry has been automatically imported via OpenAlex by LIST harvest scripts. Please refer to https://doi.org/10.1002/adom.202503818 for the original and latest version of the publication* (2026-07-01)
Subject	Astronomy and Astrophysics; Physics
Keyword	Polarizer Structural coloration Visible spectrum Circular polarization Polarization (electrochemistry) Rendering (computer graphics) Liquid crystal Camouflage Color rendering index Primary color
Topic Classification	Liquid Crystal Research Advancements Photonic Crystals and Applications Metamaterials and Metasurfaces Applications
Deposit Date	2026-01-30
Data Type	Article
Data Source	Advanced Optical Materials

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