3～5微米中红外发光的稀土掺杂硫卤玻璃陶瓷材料研究

项目名称： 3～5微米中红外发光的稀土掺杂硫卤玻璃陶瓷材料研究

项目编号： No.60878042

项目类型： 面上项目

立项/批准年度： 2009

项目学科： 金属学与金属工艺

项目作者： 戴世勋

作者单位： 宁波大学

项目金额： 32万元

中文摘要： 稀土离子掺杂硫卤玻璃作为一种激光增益介质可潜在应用于中红外激光器、中红外光纤放大器、和中红外波导激光器。本文制备了系列Er3+,Tm3+,Dy3+,Ho3+四种单掺Ge-Ga-S-CsI硫卤玻璃、Tm3+/Dy3+、Ho3+/Pr3+双掺硫卤玻璃及微晶化后的玻璃陶瓷，系统地研究了其物理、光学、光谱参数及中红外荧光特性。在单掺Er3+,Tm3+,Dy3+,Ho3+四种单掺Ge-Ga-S-CsI硫卤玻璃中都观察到了荧光长于2.0um荧光输出，分别是Er3+:4I11/2-4I13/2跃迁对应的2.8um荧光、Tm3+:3H4-3H5和3H5-3F4和跃迁对应的2.3um 和3.8um荧光、Dy3+:6H13/2-6H15/2跃迁对应的2.86um、Ho3+:5I6-5I7和5I5-5I6跃迁对应的2.81um和3.86um荧光；热处理后的Tm3+、Dy3+:75GeS2-15Ga2S3-10CsI玻璃陶瓷样品在800 nm激光泵浦下其中红外荧光强度相对于基质玻璃增加3倍，但随着热处理温度的提高，强度开始减弱。

中文关键词： 中红外发光；稀土离子；硫卤玻璃陶瓷；光谱;微晶化热处理；

英文摘要： Rare-earth ions doped chalcohalide glasses as a laser gain medium of glass can be potentially applied to mid-infrared lasers, mid-IR fiber amplifiers, and mid-infrared waveguide lasers. In this work, we prepared a series of Er3+, Tm3 +, Dy3+, Ho3+ single-doped Ge-Ga-S-CsI chalcohalide glass, Tm3+/Dy3+, Ho3+/ Pr3+ co-doped glasses and glass ceramics after the heat-treatment, systematically investigated the physical, optical, optical spectral parameters and mid-infrared fluorescence characteristics. Fluorescent emission at wavelength longer than 2 um was observed in Er3+, Tm3+,Dy3+,Ho3+ single-doped Ge-Ga-S-CsI chalcohalide glass. They are Er3+: 4I11/2-4I13/2 transition corresponds to 2.8 um fluorescence, Tm3+:3H4-3H5 and 3H5-3F4 transition corresponds to 2.3um and 3.8um fluorescence, Dy3+:6H13/2-6H15/2 transition corresponds to 2.86um, Ho3+:5I6-5I7 and 5I5-5I6 transitions corresponding to 2.81um and 3.86um fluorescence, respectively. Under 800nm pump excitation, mid-infrared fluorescent intensities of the heat-treated glass ceramic samples doped with Tm3+ and Dy3+ in composition of 75GeS2-15Ga2S3-10CsI glasses are three times as high as that of the host glass, and attenuate with increasing heat treating temperature.

英文关键词： Mid-infrared fluorescence;Rare-earth ions;chalcohalide glasses ceramics;spectroscopic properties;microcrystalline heat-treatment;