Magneto-optical waveguides made of cobalt ferrite nanoparticles embedded in silica/zirconia organic inorganic matrix

Fadi Choueikani 1 François Royer 2, 1 Damien Jamon 1, 2 Jean Jacques Rousseau 1 Ali Siblini 1 Sophie Neveu 3 Jamal Charara 4
1 DIOM - Dispositifs et Instrumentation en Optoélectronique et micro-ondes
2 LHC - Laboratoire Hubert Curien [Saint Etienne]
3 LI2C - Liquides Ioniques et Interfaces Chargées
4 Département de Physique, Faculté des sciences I
Abstract : This paper describes a way to develop magneto-optical waveguides via sol-gel process. They are made of cobalt ferrite nanoparticles embedded in a silica/zirconia matrix. Thin films are coated on glass substrate using the dip-coating technique. Annealing and UV treatment are applied to finalize samples preparation. Therefore, planar waveguides combining magneto-optical properties with a low refractive index (~ 1, 5) are obtained. M-lines and free space ellipsometry measurements show a specific Faraday rotation of 250 °/cm and a modal birefringence of 1.10−4, at 820 nm. Thus, the mode conversion efficiency can reach a maximum value around 56 %.
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Journal articles
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https://hal-ujm.archives-ouvertes.fr/ujm-00360198
Contributor : Francois Royer <>
Submitted on : Tuesday, February 10, 2009 - 4:06:48 PM
Last modification on : Thursday, July 4, 2019 - 11:00:04 AM

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Fadi Choueikani, François Royer, Damien Jamon, Jean Jacques Rousseau, Ali Siblini, et al.. Magneto-optical waveguides made of cobalt ferrite nanoparticles embedded in silica/zirconia organic inorganic matrix. Applied Physics Letters, American Institute of Physics, 2009, 94 (5), pp.051113. ⟨10.1063/1.3079094⟩. ⟨ujm-00360198⟩

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