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Article Dans Une Revue Journal of the American Ceramic Society Année : 2014

Accurate Determination of Optical Functions of Ge-As-Te Glasses via Spectroscopic Ellipsometry

Résumé

Variable angle spectroscopic ellipsometry technique was used to characterize optical functions of chalcogenide glasses from Ge-​As-​Te system in broad spectral range (300 nm-​20 μm)​. Measured real and imaginary parts of pseudodielec. function were modeled with Cody-​Lorentz approach and Sellmeier equation. Very good agreement between exptl. measured and modeled imaginary and real parts of pseudodielec. functions leads to precise detn. of optical functions (refractive index, extinction coeff.) of studied Ge-​As-​Te glasses in extremely broad spectral range covering UV-​Vis-​NIR-​MIR. The method is generally applicable for other glasses and amorphous materials.

Domaines

Matériaux

Dates et versions

hal-01102058 , version 1 (12-01-2015)

Identifiants

Citer

Petra Hawlová, Frédéric Verger, Virginie Nazabal, Rémi Boidin, Petr Němec, et al.. Accurate Determination of Optical Functions of Ge-As-Te Glasses via Spectroscopic Ellipsometry. Journal of the American Ceramic Society, 2014, 97 (10), pp.044-3047. ⟨10.1111/jace.13190⟩. ⟨hal-01102058⟩
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