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Proceedings Paper

Determination of Auger upconversion coefficient in Nd3+ doped solids by thermal lens technique
Author(s): A. A. Andrade; D. F. de Sousa; L. A. O. Nunes; Tomaz Catunda
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Paper 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.

Paper Details

Date Published: 19 November 2003
PDF: 2 pages
Proc. SPIE 4829, 19th Congress of the International Commission for Optics: Optics for the Quality of Life, (19 November 2003); doi: 10.1117/12.530755
Show Author Affiliations
A. A. Andrade, Univ. de Sao Paulo (Brazil)
D. F. de Sousa, Univ. de Sao Paulo (Brazil)
L. A. O. Nunes, Univ. de Sao Paulo (Brazil)
Tomaz Catunda, Univ. de Sao Paulo (Brazil)


Published in SPIE Proceedings Vol. 4829:
19th Congress of the International Commission for Optics: Optics for the Quality of Life

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