Photothermal spectroscopic characterization in tellurite glasses codoped with rare-earth ions

Viviane Pilla; Enver F. Chillcce; Eugenio Rodriguez; Thomaz Catunda; Egberto Munin; Carlos L. Cesar; Luiz C. Barbosa

doi:10.1117/12.646583

28 February 2006 Photothermal spectroscopic characterization in tellurite glasses codoped with rare-earth ions

Viviane Pilla, Enver F. Chillcce, Eugenio Rodriguez, Thomaz Catunda, Egberto Munin, Carlos L. Cesar, Luiz C. Barbosa

Proceedings Volume 6116, Optical Components and Materials III; 61160X (2006) https://doi.org/10.1117/12.646583
Event: Integrated Optoelectronic Devices 2006, 2006, San Jose, California, United States

Abstract

Thermal Lens (TL) and spectroscopic characterizations were performed in 70TeO₂-19WO₃-7Na₂O-4Nb₂O₅ (mol%) tellurite glasses. TL measurements were accomplished in Er³⁺ /Tm³⁺ co-doped tellurite glasses in function of the Tm₂O₃ concentration (0.4-1.6 x10²⁰ ions/cm³). Fluorescence spectra at 488 nm showed that Er³⁺ /Tm³⁺ co-doped tellurite glasses present several emission bands between (500-1800) nm. However, the more intense emission bands correspond to the Tm³⁺ and Tm³⁺ transitions (⁴I_13/2 → ⁴I_15/2 and ³F₄ → ³H₆), respectively. The absolute nonradiative quantum efficiency (φ) was determined by TL method. Higher values of φ were obtained with the increase of Tm₂O₃ concentration inside of the Er³⁺/Tm³⁺ co-doped tellurite glasses. These results are corroborated by the Judd-Ofelt calculations.

Citation Download Citation

Viviane Pilla, Enver F. Chillcce, Eugenio Rodriguez, Thomaz Catunda, Egberto Munin, Carlos L. Cesar, and Luiz C. Barbosa "Photothermal spectroscopic characterization in tellurite glasses codoped with rare-earth ions", Proc. SPIE 6116, Optical Components and Materials III, 61160X (28 February 2006); https://doi.org/10.1117/12.646583

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