LEROY, Floriane; ROUSSEAU, Anthony; PAYAN, Sandrine; DOGHECHE, El Hadj; JENKINS, David; DECOSTER, Didier; MAGLIONE, Mario

doi:10.1364/OL.38.001037

Métadonnées

Afficher la notice complète

Licence d’utilisation du document

LEROY, Floriane
Institut d’Électronique, de Microélectronique et de Nanotechnologie - UMR 8520 [IEMN]

ROUSSEAU, Anthony
Institut de Chimie de la Matière Condensée de Bordeaux [ICMCB]

PAYAN, Sandrine
Institut de Chimie de la Matière Condensée de Bordeaux [ICMCB]

Langue

Article de revue

Ce document a été publié dans

Optics Letters. 2013, vol. 38, n° 7, p. 1037-1039

Optical Society of America - OSA Publishing

Résumé en anglais

Ferroelectric BaTiO3 (BTO) thin films are grown by RF sputtering onto an indium tin oxide bottom electrode on a MgO single-crystal substrate. We have studied here the optical properties by the prism coupling technique. We report the ordinary and extraordinary refractive indices of the films, the film thickness, and the optical losses that are obtained on the planar waveguides: n0=2.224±0.001 and ne=2.219±0.001 at 1539 nm. Furthermore, in order to demonstrate the active property of the BTO films, we have investigated the electro-optic (EO) properties by using the change of the resonant coupling angle (variation of fundamental TE0 guided mode) when the transverse electric field is applied. The latter is induced by the refractive index variation (Δn) caused by the EO effect when a static electric field is applied transversely to the film. The EO coefficient obtain is about 18 pm/V for TE mode and 23 pm/V for TM modes at 1539 nm. This value illustrates the suitability of the BTO material thin film with a polycrystalline structure for applications such as modulations, switching, and interconnections.< Réduire

Mots clés en anglais

Electro-optical materials

Guided waves

Thin films

Métadonnées

Licence d’utilisation du document

Guided-wave electro-optic characterization of BaTiO3 thin films using the prism coupling technique

Langue

Ce document a été publié dans

Résumé en anglais

Mots clés en anglais

DOI

Origine

Unités de recherche