Tm3+-doped lead silicate glass sensitized by Er3+ for efficient ~2 μm mid-infrared laser material

J. Zhang (1) , N. Wang (1) , Y. Guo (1) , M. Cai (2) , Y. Tian (1) , F. Huang (1) , S. Xu (1)

1 CJLU - China Jiliang University
2 ISCR - Institut des Sciences Chimiques de Rennes

Er3+/Tm3+ co-doped lead silicate glasses with low phonon (953 cm−1) and good thermal stability were synthesized. The ~2 μm mid-infrared emission resulting from the 3F4 → 3H6 transition of Tm3+ sensitized by Er3+ has been observed by 808 nm LD pumping. The optimal luminescence intensity was obtained in the sample with 1Tm2O3/2.5Er2O3 co-doped. Moreover, the energy transfer mechanism from Er3+ to Tm3+ ion was analyzed. Absorption and emission cross section have been calculated. The calculated maximum emission cross section of Tm3+ is 2.689 × 10−21 cm2 at 1863 nm. Microparameters of energy transfer between Er3+ and Tm3+ ions have also been analyzed. These results ensure that the prepared Er3+/Tm3+ co-doped lead silicate glasses have excellent spectroscopic properties in mid-infrared region and provide a beneficial guide for mid-infrared laser material.

Mots clés: 2 μm emission; Energy transfer; Er3+/Tm3+ co-doped; Lead silicate

Domaines: Chimie; Matériaux

J. Zhang, N. Wang, Y. Guo, M. Cai, Y. Tian, et al.. Tm3+-doped lead silicate glass sensitized by Er3+ for efficient ~2 μm mid-infrared laser material. Spectrochimica Acta Part A: Molecular and Biomolecular Spectroscopy [1994-..], 2018, 199, pp.65-70. ⟨10.1016/j.saa.2018.03.031⟩. ⟨hal-01774408v1⟩