Thermal lens determination of fluorescence quantum efficiency of 3F4level of Tm3+ions in solids

Autor: Oliveira, S. L., Lima, S. M., Catunda, T., Vargas, H., Nunes, L. A.O., Rohling, J. H., Bento, A. C., Baesso, M. L., Oliveira, S. L., Lima, S. M., Catunda, T., Vargas, H., Nunes, L. A.O., Rohling, J. H., Bento, A. C., Baesso, M. L.
Zdroj: Journal de Physique IV - Proceedings; June 2005, Vol. 125 Issue: 1 p193-196, 4p
Abstrakt: In this work, a method based on thermal lens spectrometry is proposed to determine the fluorescence quantum efficiency (η) of the 3F4level (∼1.8μm emission) of Tm-doped solids. It was applied to Tm-doped water free low silica calcium aluminate glasses. The obtained ηvalue for the glasses with high Tm content was approximately 30%, which is in agreement with the achieved ηvalues from ratio between radiative and experimental lifetimes.
Databáze: Supplemental Index