[14p-2R-1~16] 16.1 Fundamental properties, evaluation, process and devices in disordered materials

△ [14p-2R-9] Single crystal patterning, glass structure and crystallization on fluoroborate glasses

〇Kenji Shinozaki¹, Shouta Abe¹, Tsuyoshi Honma¹, Takayuki Komatsu¹ (1.Nagaoka Univ. Tech.)

Keywords:Glass structure,Glass-ceramics,Fluorides

Recently, we have developed new oxyfluoro borate glasses. The glasses with the system of BaF2-Al2O3-B2O3 include 40% or larger amount of fluorine for anions, and the Eu3+-doped glasses show small concentration quenching and 97% of quantum yields in a visible region. After heat-treatment for the glasses, BaAlBO3F2 nanocrystals formed. By contrast, single crystal line were successfully patterned after laser irradiation. Optical properties, crystallization and the glass structure were investigated on this work.