[11p-E217-1~8] 16.1 Fundamental properties, evaluation, process and devices in disordered materials

1:45 PM - 2:00 PM JST(4:45 AM - 5:00 AM UTC)

[11p-E217-2] Fluorescence properties of glasses containing a large amount of rare earth ions prepared by a levitation technique

〇(M2)Koki Tanabe¹, Atsunobu Masuno¹, Nobuaki Terakado¹, Yuta Shuseki¹, Katsuhisa Tanaka¹ (1.Kyoto Univ.)

Keywords:

glass,rare earth

Rare-earth-doped glasses are widely applied as optical materials; however, concentration quenching and crystallization pose significant challenges at high doping concentrations. To address these issues, this study employed a levitation technique to fabricate glasses doped with Eu³⁺ or Er³⁺ as luminescent centers in a glass system exhibiting high rare-earth solubility. As a result, we successfully achieved vitrification even for compositions that crystallize via conventional methods, and confirmed that concentration quenching was substantially suppressed even at extremely high doping concentrations.