DataVXAdvanced Optical MaterialsPaper
journal article·2025-02Open access

Liquid Crystal 3D Optical Waveguides Based on Photoalignment

Peter Ropač, Yu‐Tung Hsiao, Brecht Berteloot, Yera Ussembayev, Inge Nys, Miha Ravnik, Kristiaan Neyts

Advanced Optical Materials· Volume 13· Issue 4
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Source abstract

Abstract

Abstract A novel design and approach for the realization of liquid crystal optical waveguides using photopatterning as a manufacturing method is presented. The developed method is used to demonstrate straight waveguides of different widths and curved waveguides with different radius of curvature. The waveguides are terminated with +1 or −1 surface defects through which the light incouples/outcouples. The effect of the straight waveguide thickness and the radius of curvature of the curved waveguides on the attenuation of the light in the waveguide is experimentally explored. The experiments are supported with numerical simulations of light propagation through both types of waveguides and outcoupling out of the straight waveguides. Furthermore, the effect of the size of the −1 defect terminations on the outcoupling efficiency is explored using simulations. Based on the presented design and manufacturing approach, liquid crystal optical waveguides of various shapes can be realized accurately with low‐cost.
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Research context

OpenAlex topics: Photonic Crystals and Applications · Photonic and Optical Devices · Liquid Crystal Research Advancements

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

Affiliations

Faculty of Mathematics and Physics University of Ljubljana Jadranska ulica 19 Ljubljana 1000 Slovenia

Jožef Stefan Institute Jamova cesta 39 Ljubljana 1000 Slovenia

ELIS Department Ghent University Technologiepark‐Zwijnaarde 126 Ghent 9052 Belgium

International Institute for Sustainability with Knotted Chiral Meta Matter 2–313 Kagamiyama Hiroshima 739‐0046 Japan

Department of Electronic and Computer Engineering The Hong Kong University of Science and Technology Clear Water Bay, Kowloon Hong Kong SAR Hong Kong

State Key Laboratory of Advanced Displays and Optoelectronics Technologies Clear Water Bay, Kowloon Hong Kong SAR Hong Kong

Funding

European Research Council · HORIZON EUROPE European Research Council · Javna Agencija za Raziskovalno Dejavnost RS · Fonds Wetenschappelijk Onderzoek

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