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7 March 2016 Hot pen and laser writable photonic polymer films
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Proceedings Volume 9769, Emerging Liquid Crystal Technologies XI; 97690Y (2016)
Event: SPIE OPTO, 2016, San Francisco, California, United States
An orange-reflecting photonic polymer film has been fabricated based on a hydrogen-bonded cholesteric liquid crystalline (CLC) polymer consisting of non-reactive (R)-(+)-3-methyladipic acid as the chiral dopant. This polymer film can be patterned easily by evaporating the chiral dopant at specific locations with a hot pen or a laser beam. Removal of chiral dopant leads to a decrease in the helical pitch at the heat treated areas leading to a change in color from orange to green revealing a high contrast pattern. The photonic patterns are irreversible and stable at ambient conditions. This makes such a CLC polymer film interesting as writable photonic paper.
© (2016) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Monali Moirangthem, Jelle E. Stumpel, Baran Alp, Pit Teunissen, Cees W. M. Bastiaansen, and Albertus P. H. J. Schenning "Hot pen and laser writable photonic polymer films", Proc. SPIE 9769, Emerging Liquid Crystal Technologies XI, 97690Y (7 March 2016);

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