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Optical anticounterfeiting photonic bilayer film based on handedness of solid-state helicoidal structure
Saddam Hussain1, Sajjad Haider2, Waheed Al-Masry2
1School of Applied Chemical Engineering, Polymeric Nano Materials Laboratory, Kyungpook National University Daegu 41566 Republic of Korea psy@knu.ac.kr.
RSC Advances
|May 2, 2022
Abstract:
Anticounterfeiting photonic bilayer films were fabricated by sandwiching two solid-state cholesteric liquid crystal films having different handedness. The fabricated photonic bilayer films were successfully applied to patterning by selective photopolymerization. This photonic bilayer film as a new cryptographic technology is of interest for its anticounterfeiting application.
