DOI: 10.1039/d6tc02510b ISSN: 2050-7526

Structural origin of efficient mid-infrared fluorescence in highly Er-doped La 2 O 3 –Ga 2 O

Kohei Yoshimoto, Atsunobu Masuno, Yoshinobu Ezura, Motoi Ueda, Hiroyuki Inoue

Machine learning MD and synchrotron X-ray experiments suggest that high oxygen coordination suppresses Er clustering, while locally reduced high-energy phonons around Er support efficient MIR fluorescence in Er:La 2 O 3 –Ga 2 O 3 glasses.