Photoaligned and photopatterned polymer-stabilized-liquid-crystals for optical anti-counterfeiting

Siying Liu; Saleh Alfarhan; Kailong Jin; Xiangfan Chen

doi:10.1117/12.2676807

5 October 2023 Photoaligned and photopatterned polymer-stabilized-liquid-crystals for optical anti-counterfeiting

Siying Liu, Saleh Alfarhan, Kailong Jin, Xiangfan Chen

Proceedings Volume PC12658, Liquid Crystals XXVII; PC126580A (2023) https://doi.org/10.1117/12.2676807
Event: SPIE Organic Photonics + Electronics, 2023, San Diego, California, United States

Abstract

In this work, we developed a photoalignment and photopatterning method to fabricate polymer-stabilized-liquid-crystals (PSLCs) for optical data encryption and anti-counterfeiting purposes. The PSLCs possess both implicit optical patterns as well as explicit geometries, could serve with improved environmental robustness and thermal stability after a post-extraction process, and can be directly bonded onto various substrates. Based on this, we prototyped proof-of-concept optical data encryption and anti-counterfeiting demonstrations using either one single photoaligned and photopatterned PSLC, or a pair of cascade, spatially programmed PSLCs.

Conference Presentation

Citation Download Citation

Siying Liu, Saleh Alfarhan, Kailong Jin, and Xiangfan Chen "Photoaligned and photopatterned polymer-stabilized-liquid-crystals for optical anti-counterfeiting", Proc. SPIE PC12658, Liquid Crystals XXVII, PC126580A (5 October 2023); https://doi.org/10.1117/12.2676807

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