Broadband ∼2 μm luminescence properties and energy transfer in Tm3+/Ho3+ co-doped TeO2–Al2O3–BaF2 glass

Tm3+/Ho3+ co-doped tellurite aluminate glasses were prepared using the melt-quenching technique. Under 808 nm laser diode (LD) excitation, these glasses exhibit intense 2 μm band luminescence, with a full width at half-maximum (FWHM) of 144 nm. The energy transfer mechanism between Tm3+ and Ho3+ was...

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Bibliographic Details
Published in:Ceramics international 2024-10, Vol.50 (19), p.35782-35790
Main Authors: Zhou, Zhenyu, Zhang, Chi, Han, Kexuan, Wu, Tong, Zhou, Dechun
Format: Article
Language:English
Subjects:
2 μm luminescence
Energy transfer
Tellurite aluminate glass
Tm3+/Ho3
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Summary:Tm3+/Ho3+ co-doped tellurite aluminate glasses were prepared using the melt-quenching technique. Under 808 nm laser diode (LD) excitation, these glasses exhibit intense 2 μm band luminescence, with a full width at half-maximum (FWHM) of 144 nm. The energy transfer mechanism between Tm3+ and Ho3+ was explored to investigate the luminescence behavior further. Furthermore, the forward energy transfer coefficient (Tm3+→Ho3+) is greater than the backward energy transfer coefficient (Ho3+→Tm3+), indicating that Tm3+ can effectively sensitize Ho3+. As mentioned above, Tm3+/Ho3+ co-doped tellurite aluminate glass is a competitive material in the laser field.
ISSN:0272-8842
1873-3956
DOI:10.1016/j.ceramint.2024.06.399