Second-order optical nonlinear and luminescent properties of Ba2TiSi2O8 nanocrystallized glass -: art. no. 091110
Second-order optical nonlinear and luminescent properties of Ba2TiSi2O8 nanocrystallized glass -: art. no. 091110
复制标题
DOI：
10.1063/1.1879114
复制
发表时间：
2005-02-28
影响因子：
4
通讯作者：
Komatsu, T
中科院分区：
文献类型：
--
作者：
Takahashi, Y;Kitamura, K;Komatsu, T
研究了Ba2TiSi2O8纳米晶在透明晶化玻璃中的光学性质。以化学计量比为Ba2TiSi2O8的40BaO心点20TiO2-40SiO(2)玻璃为原料，在760℃下晶化1h，制得Ba2TiSi2O8晶粒度接近200 nm的透明纳米晶玻璃。在Ba2TiSi2O8纳米晶玻璃中可以观察到可见的二次谐波(绿光，532 nm)和发光(蓝光，约470 nm)，证明了这种光学多功能纳米晶材料的存在。结果表明，透明Ba2TiSi2O8纳米晶玻璃的蓝色发光来源于Ba2TiSi2O8纳米晶中SiO4单元的氧相关缺陷。(C)2005年美国物理研究所。
The optical properties of Ba2TiSi2O8 nanocrystals in transparent crystallized glasses were investigated. The transparent nanocrystallized glass with Ba2TiSi2O8 crystals having a particle size of similar to 200 nm was fabricated by crystallization (at 760 degrees C for 1 h) of a glass with the stoichiometric composition of Ba2TiSi2O8, i.e., 40BaO center dot 20TiO(2)-40SiO(2) glass. Both visible second-harmonic generation (green light, 532 nm) and luminescence (blue light, similar to 470 nm) could be observed in the transparent Ba2TiSi2O8 nanocrystallized glass, demonstrating the optical multifunctional nanocrystallized material. It was suggested that the blue luminescence from the transparent Ba2TiSi2O8 nanocrystallized glass originated from the oxygen-related defects of the SiO4 unit in the Ba2TiSi2O8 nanocrystals. (C) 2005 American Institute of Physics.