Determination fluorescence quantum efficiency of Nd<sup>3+</sup> doped glasses and crystal by thermal lens technique in function of the wavelength

A. A. Andrade; S. M. Lima; J. A. Sampaio; Tomaz Catunda; Mauro L. Baesso

doi:10.1117/12.530742

19 November 2003 Determination fluorescence quantum efficiency of Nd³⁺ doped glasses and crystal by thermal lens technique in function of the wavelength

A. A. Andrade, S. M. Lima, J. A. Sampaio, Tomaz Catunda, Mauro L. Baesso

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Proceedings Volume 4829, 19th Congress of the International Commission for Optics: Optics for the Quality of Life; (2003) https://doi.org/10.1117/12.530742
Event: 19th Congress of the International Commission for Optics: Optics for the Quality of Life, 2002, Florence, Italy

Abstract

A new method was developed to determination fluorescence quantum efficiency of solids by thermal lens (TL). The experiments have been performed in Nd³⁺-doped using different wavelength. In this work the absolute value of fluorescence quantum efficiency can be obtained by the linear dependence of the TL signal with the excitation wavelength. Our results suggest that the method can be applied to study a wide range of fluorescent materials, with a special ability to be used for measurements of highly transparent materials with very low TL effect.

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A. A. Andrade, S. M. Lima, J. A. Sampaio, Tomaz Catunda, and Mauro L. Baesso "Determination fluorescence quantum efficiency of Nd³⁺ doped glasses and crystal by thermal lens technique in function of the wavelength", Proc. SPIE 4829, 19th Congress of the International Commission for Optics: Optics for the Quality of Life, (19 November 2003); https://doi.org/10.1117/12.530742

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