Thermal lens study of the fluorescence thermal quenching in Cr3+-doped fluoride crystals

V. Pilla; S. M. Lima; Tomaz Catunda; A. Medina; Mauro L. Baesso

doi:10.1117/12.437209

14 August 2001 Thermal lens study of the fluorescence thermal quenching in Cr³⁺-doped fluoride crystals

V. Pilla, S. M. Lima, Tomaz Catunda, A. Medina, Mauro L. Baesso

Proceedings Volume 4419, 4th Iberoamerican Meeting on Optics and 7th Latin American Meeting on Optics, Lasers, and Their Applications; (2001) https://doi.org/10.1117/12.437209
Event: IV Iberoamerican Meeting of Optics and the VII Latin American Meeting of Optics, Lasers and Their Applications, 2001, Tandil, Argentina

Abstract

Fluorescence quantum efficiency, defined as the ratio between the radiative decay and the total decay times, is an important optical property of fluorescent materials. There are two important processes responsible to reduce the upper- state population and consequently (eta) in fluoride crystals: the fluorescence thermal quenching and the upconversion. In this work the results of (eta) in function of temperature for Cr³⁺-doped fluoride crystals were obtained with the thermal lens technique. Remember that the excited state lifetime is given by radiative and nonradiative parts, an important particular feature in these fluoride crystals is the strong temperature.

Citation Download Citation

V. Pilla, S. M. Lima, Tomaz Catunda, A. Medina, and Mauro L. Baesso "Thermal lens study of the fluorescence thermal quenching in Cr³⁺-doped fluoride crystals", Proc. SPIE 4419, 4th Iberoamerican Meeting on Optics and 7th Latin American Meeting on Optics, Lasers, and Their Applications, (14 August 2001); https://doi.org/10.1117/12.437209

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