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Updated: Oct 30, 2025

Patterning via Optical Saturable Transitions - Fabrication and Characterization
Published on: December 11, 2014
Naiyu Liu1, Zhikun Zheng1, Dingshan Yu1
1Key Laboratory for Polymeric Composite and Functional Materials of Ministry of Education, School of Chemistry, Sun Yat-sen University, Guangzhou 510275, China.
Researchers developed invisible patterns using programmable printing for optical encryption. This method creates responsive photonic crystals revealed by wetting, offering a reversible anti-counterfeiting solution.
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