Author/Authors :
Sun، نويسنده , , Baojuan and Song، نويسنده , , Hongwei and Wang، نويسنده , , Jiwei and Peng، نويسنده , , Hongshang and Zhang، نويسنده , , Xiaobo and Lu، نويسنده , , Shaozhe and Zhang، نويسنده , , Jiahua and Xia، نويسنده , , Haiping، نويسنده ,
Abstract :
Ultraviolet light-induced spectral change in one Eu3+ doped aluminosilicate glass was studied. It was observed that the excited charge-transfer band decreased after irradiation. The intensity at the irradiated site decreased linearly with the power density of the irradiation light. This means that the light-induced change is a one-photon process. Irradiations at different wavelengths indicate that the spectral change is frequency-selective. The dark decay of the spectral change was also studied. At least two time constants were obtained. One constant is ∼2.5 h, and the other is longer.
