H2O influence evaluating and mid-IR fluorescence quenching in Tm3+-doped GeGaSCsI chalcohalide glasses

Xunsi Wang (1) , Baoan Song (1) , Wei Zhang (1) , Dai Shixun (1) , Guoxiang Wang (1) , Tiefeng Xu (1) , Xiang Shen (1) , Xianghua Zhang (2) , Chao Liu (3) , Kai Xu (3) , Jong Heo (3)

1 Information Science and Engineering
2 ISCR - Institut des Sciences Chimiques de Rennes
3 Center for Information Materials and Department of Materials Science and Engineering

This work presents a detailed study on near-infrared and mid-infrared fluorescence emissions with five sets of Tm3+-doped 75GeS2-15Ga2S3-10CsI chalcohalide glass. They are prepared in normal or water drying process. Based on the diffusion-limited relaxation calculation, a detailed investigation is put forward to obtain efficient near-infrared or mid-infrared fluorescence emissions of Tm3+ on the effect of H2O on the Tm3+ fluorescence. Detailed investigations are given to the interacted energy transferring processes between rare-earth, impurities and vibrating phonons with the appearance of fluorescence quenching, along with Tm3+, H2O concentrations varying and energy gaps forming. The radioactive properties are analyzed using compensated diffusion-limited relaxation calculation method, and the near-IR and mid-IR fluorescence properties are evaluated in detail with experimental and theoretical analysis.

Mots clés: Mid-IR fluorescence; Chalcohalide glass; Fluorescence quenching

Domaines: Matériaux

Xunsi Wang, Baoan Song, Wei Zhang, Dai Shixun, Guoxiang Wang, et al.. H2O influence evaluating and mid-IR fluorescence quenching in Tm3+-doped GeGaSCsI chalcohalide glasses. Journal of Non-Crystalline Solids, 2011, 357 (11-13), pp.2403-2408. ⟨10.1016/j.jnoncrysol.2011.01.010⟩. ⟨hal-00719694⟩