Rewritable Optical Storage with a Spiropyran Doped Liquid Crystal Polymer Film

Rewritable optical storage has been obtained in a spiropyran doped liquid crystal polymer films. Pictures can be recorded on films upon irradiation with UV light passing through a grayscale mask and they can be rapidly erased using visible light. Films present improved photosensitivity and optical c...

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Bibliographic Details
Published in:Macromolecular rapid communications. 2016-03, Vol.37 (6), p.500-505
Main Authors: Petriashvili, Gia, De Santo, Maria Penelope, Devadze, Lali, Zurabishvili, Tsisana, Sepashvili, Nino, Gary, Ramla, Barberi, Riccardo
Format: Article
Language:English
Subjects:
Benzopyrans - chemistry
Crystals
Indoles - chemistry
Irradiation
Kinetics
Liquid crystal polymers
Nitro Compounds - chemistry
Optical Storage Devices
patterned images
Photochemical Processes
photochromism
Photosensitivity
Pictures
polymer dispersed liquid crystals
Polymer films
Polymers - chemistry
Real time
Recording
Spatial analysis
Spatial discrimination
Spatial resolution
Spiropyrans
Storage
Ultraviolet radiation
Ultraviolet Rays
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Summary:Rewritable optical storage has been obtained in a spiropyran doped liquid crystal polymer films. Pictures can be recorded on films upon irradiation with UV light passing through a grayscale mask and they can be rapidly erased using visible light. Films present improved photosensitivity and optical contrast, good resistance to photofatigue, and high spatial resolution. These photochromic films work as a multifunctional, dynamic photosensitive material with a real‐time image recording feature. Rewritable optical storage has been obtained in a spiropyran doped liquid crystal polymer film. Pictures can be recorded on films upon irradiation with UV light and they can be rapidly erased using visible light. Films present good resistance to photofatigue and high spatial resolution and they are suitable for real‐time image recording applications.
ISSN:1022-1336
1521-3927
DOI:10.1002/marc.201500626