Erasure mechanisms of polarization holographic gratings in spirooxazine-doped polymer films
Article first published online: 11 NOV 2008
DOI: 10.1002/app.29196
Copyright © 2008 Wiley Periodicals, Inc.
Additional Information
How to Cite
Fu, S., Hu, W., Xie, M., Liu, Y. and Duanmu, Q. (2009), Erasure mechanisms of polarization holographic gratings in spirooxazine-doped polymer films. Journal of Applied Polymer Science, 111: 2157–2162. doi: 10.1002/app.29196
Publication History
- Issue published online: 12 NOV 2008
- Article first published online: 11 NOV 2008
- Manuscript Accepted: 30 JUL 2008
- Manuscript Received: 21 FEB 2008
Funded by
- National Natural Science Foundation of China. Grant Number: 29972032
- Abstract
- Article
- References
- Cited By
Keywords:
- orientation;
- isomerization;
- matrix;
- erasure;
- films
Abstract
Dynamic holographic recording under linear polarized writing beams at 632.8 nm was performed on two different new spirooxazine doped PMMA matrices assisted by UV light. Thermal rate constants of the two holographic storage medium were determined. It was found that diffraction efficiency and erasure dynamics of the holographic gratings in the two polymer films were dependent on the thermal stability and aggregation of spirooxazine molecules in PMMA matrices. During erasure of the holographic gratings, only in the polymer film with a lower thermal rate constant, a nearly instantaneous increase of diffraction efficiency was observed, resulting from the formation of a transient orientation grating. A theoretical description of the transient orientation grating, competing with isomerization gratings, agrees well with experimental results. The interaction between the chromophores and matrices was also discussed. © 2008 Wiley Periodicals, Inc. J Appl Polym Sci, 2009

1097-4628/asset/olbannercenter.gif?v=1&s=ae8916e204e146c7bd9655b391127aebd31a7873)
