Journal
OPTICAL MATERIALS
Volume 58, Issue -, Pages 158-163Publisher
ELSEVIER SCIENCE BV
DOI: 10.1016/j.optmat.2016.04.037
Keywords
Refractive index; Diazo Meldrum's acid; CAB; Holography; Photopolymers
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Funding
- European Community [312430]
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Diazo Meldrum's acid undergoes a phptoreaction induced by UV light and it is used as photosensitizer in photoresists. Upon photoreaction, a change in refractive index occurs, which makes this system interesting for volume holography. We report on the sublimation effect at room temperature and the effect of photoirradiation on the refractive index in thin films of CAB (Cellulose acetate butyrate) doped with different amount of diazo Meldrum's acid. A net modulation of the refractive index of 0.01 is achieved with 40% of doping ratio together with a reduction of the film thickness. (C) 2016 Elsevier B.V. All rights reserved.
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