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Photorefractivity And Photoisomerization In Azo-Dye-Doped Polymers

Published online by Cambridge University Press:  16 February 2011

B. Kippelen ,
Sandalphon ,
K. Meerholz ,
B. Volodin ,
S. R. Lyon ,
A. B. Padias ,
H. K. Hall Jr  and
N. Peyghambarian
B. Kippelen
Affiliation:
Optical Sciences Center, University of Arizona, Tucson, AZ 85721
Sandalphon
Affiliation:
I.P.C.M.S. Groupe d'Optique Nonlinéaire et d'Optoélectronique - 5, rue de l'Université 67084 Strasbourg Cedex, France
K. Meerholz
Affiliation:
Optical Sciences Center, University of Arizona, Tucson, AZ 85721
B. Volodin
Affiliation:
Optical Sciences Center, University of Arizona, Tucson, AZ 85721
S. R. Lyon
Affiliation:
Chemistry Department, University of Arizona, Tucson, AZ 85721
A. B. Padias
Affiliation:
Chemistry Department, University of Arizona, Tucson, AZ 85721
H. K. Hall Jr
Affiliation:
Chemistry Department, University of Arizona, Tucson, AZ 85721
N. Peyghambarian
Affiliation:
Optical Sciences Center, University of Arizona, Tucson, AZ 85721
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Abstract

The photorefractive properties of photoconducting polymers doped with nonlinear azo dyes are investigated by means of polarization and field-dependent four-wave Mixing experiments. The nonlocal response of the photorefractive effect is shown by two-beam coupling experiments. High diffraction efficiencies (> 5%) and net coupling gain (6 cm-l) are demonstrated at low power with a semiconductor laser diode in 105 μm films. Under some conditions, gratings due to photoisomerization of the azo dye molecules are also present and their properties are discussed.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 328: Symposium Q – Electrical, Optical, and Magnetic Properties of Organic Solid State Materials , 1993 , 577
Copyright
Copyright © Materials Research Society 1994

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References

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