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Novel Azo-Dye Doped PMMA Films as Optical Data Storage Media

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Abstract

Optical information was holographically stored, retrieved, erased and overwritten on new azo-dye doped PMMA guest-host films. The information is stored in the form of highly localized dichroism and birefringence of the polymer films, induced by spatially modulated polarization and intensity of writing light. In this paper, we are presenting new data concerning the dynamic behaviour of these films. We have also investigated the effect of the intensity of the reading beam on the storage time of these polymeric systems.

© 1996 Optical Society of America

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