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AZO Polymers for Reversible Optical Storage

Published online by Cambridge University Press:  15 February 2011

A. Natansohn ,
P. Rochon ,
J. Gosselin  and
S. Xie
A. Natansohn
Affiliation:
Department of Chemistry, Queen's University, Kingston, Ontario, K7L 3N6, Canada
P. Rochon
Affiliation:
Department of Physics, Royal Military College, Kingston, Ontario, K7K 5LO, Canada
J. Gosselin
Affiliation:
Department of Physics, Royal Military College, Kingston, Ontario, K7K 5LO, Canada
S. Xie
Affiliation:
Department of Chemistry, Queen's University, Kingston, Ontario, K7L 3N6, Canada
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Abstract

Amorphous high-Tg polymers films containing electron-donor-electronacceptor substituted azobenzene groups can be used as reversible optical storage materials. Optical information can be “written” on the film with a polarized argon laser beam and “read” with a low power HeNe laser. Erasing can be performed with a circularly polarized writing beam. A significant number of writing/erasing cycles can be performed on the same spot. Potential applications in optical memory, holographic storage, waveguides and second harmonic generation are discussed.

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References

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