Enhancement mechanisms of Tm³⁺-codoping on 2 µm emission in Ho³⁺ doped fluoroindate glasses under 888 nm laser excitation

Wang, Ruicong, Zhao, Haiyan, Zhang, Meng, Zhang, Jiquan, Jia, Shijie, Zhang, Jun, Peng, Hangyu, Brambilla, Gilberto, Wang, Shunbin and Wang, Pengfei (2020) Enhancement mechanisms of Tm³⁺-codoping on 2 µm emission in Ho³⁺ doped fluoroindate glasses under 888 nm laser excitation. Ceramics International, 46 (5), 6973-6977. (doi:10.1016/j.ceramint.2019.11.108).

Abstract

Ho³⁺ doped and Ho³⁺/Tm³⁺ co-doped fluoroindate glass samples were prepared and their emission properties were compared. Under 888 nm laser excitation, the emission at 2µm  of Ho³⁺ ions with co-doping 2 mol% Tm³⁺ ions had a 2.9-fold improvement compared with that of Ho³⁺ doped. The absorption and emission spectra, and energy level lifetime of Ho³⁺/Tm³⁺ co-doped glass samples were measured to analyze the energy transfer processes and enhancement mechanisms. The luminescence intensity at 2µm can be greatly increased due to the bidirectional energy transfer between Tm³⁺ and Ho³⁺ ions.

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Contributors

Author: Gilberto Brambilla

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