Determination of Auger upconversion coefficient in Nd<sup>3+</sup> doped solids by thermal lens technique

A. A. Andrade; D. F. de Sousa; L. A. O. Nunes; Tomaz Catunda

doi:10.1117/12.530755

19 November 2003 Determination of Auger upconversion coefficient in Nd³⁺ doped solids by thermal lens technique

A. A. Andrade, D. F. de Sousa, L. A. O. Nunes, Tomaz Catunda

Proceedings Volume 4829, 19th Congress of the International Commission for Optics: Optics for the Quality of Life; (2003) https://doi.org/10.1117/12.530755
Event: 19th Congress of the International Commission for Optics: Optics for the Quality of Life, 2002, Florence, Italy

Abstract

Mode mismatched Thermal Lens (TL) measurements in Nd⁺³ doped fluoride glasses (ZBLAN and IGPZCa) and crystal (YLF) are reported. A nonlinear increase of the TL signal with excitation power was observed and attributed to energy-transfer upconversion. A theoretical model was developed to fit the experimental data, determine upconversion parameter (γ). The values obtained are in good agreement with previous fluorescence measurements.

Citation Download Citation

A. A. Andrade, D. F. de Sousa, L. A. O. Nunes, and Tomaz Catunda "Determination of Auger upconversion coefficient in Nd³⁺ doped solids by thermal lens technique", Proc. SPIE 4829, 19th Congress of the International Commission for Optics: Optics for the Quality of Life, (19 November 2003); https://doi.org/10.1117/12.530755

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