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Low birefringent magneto-optical waveguides fabricated via organic-inorganic sol-gel process

Published online by Cambridge University Press:  05 June 2009

F. Choueikani ,
F. Royer ,
S. Douadi ,
A. Skora ,
D. Jamon ,
D. Blanc  and
A. Siblini
F. Choueikani*
Affiliation:
Laboratoire Dispositifs et Instrumentation en Optoélecronique et Microondes – EA3523, Université Jean Monnet, 23 rue Michelon, 42023 Saint-Étienne Cedex 2, France
F. Royer
Affiliation:
Laboratoire Dispositifs et Instrumentation en Optoélecronique et Microondes – EA3523, Université Jean Monnet, 23 rue Michelon, 42023 Saint-Étienne Cedex 2, France
S. Douadi
Affiliation:
Laboratoire des Liquides Ioniques et Interfaces Chargées – UMR CNRS 7412, Université Pierre et Marie Curie, 4 place Jussieu, 75252 Paris Cedex 05, France
A. Skora
Affiliation:
Laboratoire Dispositifs et Instrumentation en Optoélecronique et Microondes – EA3523, Université Jean Monnet, 23 rue Michelon, 42023 Saint-Étienne Cedex 2, France
D. Jamon
Affiliation:
Laboratoire Dispositifs et Instrumentation en Optoélecronique et Microondes – EA3523, Université Jean Monnet, 23 rue Michelon, 42023 Saint-Étienne Cedex 2, France
D. Blanc
Affiliation:
Laboratoire Hubert Curien – UMR CNRS 5516, Université Jean Monnet, 18 rue Benoît Lauras, 42000 Saint-Étienne, France
A. Siblini
Affiliation:
Laboratoire Dispositifs et Instrumentation en Optoélecronique et Microondes – EA3523, Université Jean Monnet, 23 rue Michelon, 42023 Saint-Étienne Cedex 2, France
*
fadi.choueikani@univ-st-etienne.fr
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Abstract

This paper is devoted to the study and the characterization of novel magneto-optical waveguides prepared via organic-inorganic sol-gel process. Thin silica/zirconia films doped with magnetic nanoparticles were coated on glass substrate using dip-coating technique. After annealing, samples were UV-treated. Two different techniques were used to measure their properties: m-lines spectroscopy and free space ellipsometry. Results evidence low refractive index waveguides that combine a low modal birefringence (2×10−4) with a Faraday rotation around 15 °/cm (ϕ = 0.1%). The low birefringence is obtained with a soft UV treatment and a graded intrinsic anisotropy is evidenced for films thicker than 5 μm. Therefore, we prove that the organic-inorganic sol-gel approach is very promising to realize magneto-optical waveguides with a non-reciprocal functionality such as TE-TM mode conversion.

Keywords

Type
Research Article
Information
The European Physical Journal - Applied Physics , Volume 47 , Issue 3 , September 2009 , 30401
Copyright
© EDP Sciences, 2009

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