Yb3+/Tm3+ co-doped germanate-tellurite glass: conversion luminescent and temperature-sensing characteristics

Yuwei Wu; Chunhui Niu

doi:10.1117/12.3015109

22 December 2023 Yb³+/Tm³+ co-doped germanate-tellurite glass: conversion luminescent and temperature-sensing characteristics

Yuwei Wu, Chunhui Niu

Author Affiliations +

Proceedings Volume 12982, Pacific-Rim Laser Damage 2023: Optical Materials for High-Power Lasers; 129820X (2023) https://doi.org/10.1117/12.3015109
Event: SPIE/SIOM Pacific Rim Laser Damage, 2023, Shanghai, China

Abstract

Tm³+/Yb³+ co-doped germanate-tellurite glasses were prepared by high temperature melting with components of 50GeO₂-20TeO₂-25Na₂O-3Ga₂O₃-2Nb₂O₅-2Yb₂O₃-xTm₂O₃ (x = 0.25, 0.5, 1, 1.5, 2 mol%). According to the absorption spectrum and J-O theory, the spectral line intensity parameters (Ω2, Ω4 and Ω6) of Tm³+ ions and the spectral parameters of each excitation energy level transition were calculated. Under the excitation of 980 nm LD, the up-conversion and down-conversion emission spectrum of glasses at different concentrations of Tm³+ ions were measured with the emission wavelengths at 478, 651, 808 ,1484, and 1937nm respectively, and the concentration quenching of each luminescence was found, the up-conversion emission intensity was maximum at the doping concentration of 0.1mol%, and the concentration quenching of Tm³+ ions was analyzed. Furthermore, the optical temperature sensing properties was investigated based on the ³F₂ and ³H₄ levels of Tm³+ ions.

(2023) Published by SPIE. Downloading of the abstract is permitted for personal use only.

Citation Download Citation

Yuwei Wu and Chunhui Niu "Yb³+/Tm³+ co-doped germanate-tellurite glass: conversion luminescent and temperature-sensing characteristics", Proc. SPIE 12982, Pacific-Rim Laser Damage 2023: Optical Materials for High-Power Lasers, 129820X (22 December 2023); https://doi.org/10.1117/12.3015109

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