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Obtaining the spectroscopic quality factor through the luminescent thermometry in 50Li2O · 45B2O3 · 5Al2O3 glasses doped with Nd3+ and fluorides

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Abstract

Lithium-boron-aluminum (LBA) glasses doped with ${{\rm Nd}^{3 +}}$ and fluorides were produced. From the absorption spectra, their Judd–Ofelt intensity parameters, ${\Omega _{2,4,6}},$ and spectroscopic quality factors were calculated. Exploiting their near infrared temperature dependent luminescence, we investigated their potential for optical thermometry based on the luminescence intensity ratio (LIR) methodology. Three LIR schemes were proposed, and relative sensitivity values up to ${3.57}\;{\pm}\;{0.06}\;\% {{\rm K}^{- 1}}$ were obtained. From the temperature dependent luminescence, we alternatively calculated their corresponding spectroscopic quality factors. The results indicated that ${{\rm Nd}^{3 +}}$-doped LBA glasses are promising systems for optical thermometry and as gain mediums for solid-state lasers.

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Supplementary Material (1)

NameDescription
Supplement 1       Emission spectra and temperature uncertainties

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Data underlying the results presented in this paper are not publicly available at this time but may be obtained from the authors upon reasonable request.

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