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Dynamic behavior of azobenzene polyester used for holographic data storage

Published online by Cambridge University Press:  21 March 2011

Árpád Kerekes,
E. Lörincz,
Sz. Sajti,
P. Várhegyi,
P. S. Ramanujam and
S. Hvilsted
Árpád Kerekes
Affiliation:
Department of Atomic Physics, Budapest University for Technology and Economics H-1111 Budapest, Budafoki 8., Hungary
E. Lörincz
Affiliation:
Department of Atomic Physics, Budapest University for Technology and Economics H-1111 Budapest, Budafoki 8., Hungary
Sz. Sajti
Affiliation:
Optilink Hungary Ltd., Graphisoft Park, 1031 Budapest, Hungary
P. Várhegyi
Affiliation:
Optilink Hungary Ltd., Graphisoft Park, 1031 Budapest, Hungary
P. S. Ramanujam
Affiliation:
Department of Optics and Fluid Dynamics, Risφ National Laboratory, DK-4000 Roskilde, Denmark
S. Hvilsted
Affiliation:
Danish Polymer Centre, Department of Chemical Engineering, Technical University of Denmark, DK-2800 Kgs. Lyngby, Denmark
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Abstract

Dynamic behavior of thin photoaddressable polyester films was studied. The saturation process due to Fourier holographic recording was investigated. Model experiments show an optimal intensity ratio of the object and reference beams, where the highest efficiency occurs. This ratio is inversely proportional to the reference intensity. The material has a significantly higher sensitivity at 407 nm than at 532 nm. For 1 μm thick sample an M# of 0.25 was measurable.

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References

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