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Article Dans Une Revue European Physical Journal: Applied Physics Année : 2009

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

Résumé

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 (210) with a Faraday rotation around 15 °/cm ( = 0.1%). The low birefringence is obtained with a soft UV treatment and a graded intrinsic anisotropy is evidenced for films thicker than 5 m. 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.

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Dates et versions

hal-00489487 , version 1 (05-06-2010)

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F. Choueikani, F. Royer, S. Douadi, A. Skora, D. Jamon, et al.. Low birefringent magneto-optical waveguides fabricated via organic-inorganic sol-gel process. European Physical Journal: Applied Physics, 2009, 47 (3), pp.1-8. ⟨10.1051/epjap/2009096⟩. ⟨hal-00489487⟩
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