Refractive index modulation in polymer film doped with diazo Meldrum's acid

Journal
Date Issued
2016
Author(s)
•
Villa, Filippo
•
Bertarelli, Chiara
•
DOI
Abstract
Diazo Meldrum's acid undergoes a photoreaction 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.
Volume
58
Start page
158
Uri
Url
Issn Identifier
0925-3467
Ads BibCode
2016OptMa..58..158Z
Rights
open.access
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