Fluoride glasses have a lower phonon energy compared to oxide glasses, therefore the probability of non - radiative trasition is low and qantum efficiency of upconversion is high.

• 和传统的氧化物玻璃相比,氟化物玻璃具有声子能量低的特点,因此无辐射跃迁几率小,上转换量子效率高,使得掺稀土离子的氟化物玻璃具有高的发光效率。