发光学报2009，Vol.30Issue(2)：135-141,7.
Pr3+ 掺杂透明氟氧化物玻璃陶瓷的光谱特性
Spectroscopic Properties of Pr3+ Doped Transparent Oxyfluoride Glass Ceramic
摘要
Abstract
In this paper, we reported the spectroscopic properties of praseodymium ions (Pr3+) doped transparent oxyfluoride glass ceramic excited with different laser lines, such as 532, 514.5 and 476.5 nm. and the spectroscopic features of Pr3+ ions in LaF3 nanocrystals (NCs) and in oxide glass were presented. It was found that the population on 3P0 state of Pr3+ ion in NCs and in glass can be achieved by multi-phonon assistance process when excited by 514.5 nm laser lines. As a comparison, 476.5 nm laser line which is mainly resonant with the 3H4 to 3P0 transition of Pr3+ ions in NCs is used as the excitation source, transitions from 3P0 state to many lower states, such as 3H5, 3H6, 3F2 manifolds were observed and it showed significant difference from those excited by 532 nm and 514.5 nm laser lines in which only transition from 3P0 to 3H5 exists. We attribute those different spectroscopic features as selectively excitation of Pr3+ ions in different environments where exist strong/weak electron-phonon coupling in the 3P0,1 states of Pr3+ ion in NCs and in glass. Crystallization behavior and vibrational properties of transparent glass ceramic were also stu-died by Raman spectroscopy excited by 532 nm and 514.5 nm laser lines.关键词
透明氟氧化物玻璃陶瓷/镨离子/纳米晶Key words
transparent oxyfluoride glass ceramic/ praseodymium/ nanocrystals分类
数理科学引用本文复制引用
王英英,倪振华,王笑军,张家骅,申泽骧..Pr3+ 掺杂透明氟氧化物玻璃陶瓷的光谱特性[J].发光学报,2009,30(2):135-141,7.基金项目
国家自然科学基金(10774141,10574128)资助项目 （10774141,10574128）
Project supported by National Natural Science Foundation of China (10774141,10574128) （10774141,10574128）
