Development of high thermal-resistant quartz laser materials by uniform dispersion with zeolite and its application to industry.

本研究的目的是利用石英为基体制备高耐热激光材料。研究结果如下：(1)发现常规方法制备的石英材料中的荧光消光是由于掺杂原子如钕的聚类。(2)建立了一种新的方法，实现了掺杂原子在石英玻璃中的均匀分散，避免了溶胶石英中的聚类。量子效率得到很大程度的恢复，荧光寿命达到500微秒。(3)在石英玻璃中建立了许多控制阀门产生的技术，如溶胶法胶体二氧化硅的颗粒选择、溶胶法预成型材料的加工、烧结温度的历史以及大气气体的控制。(4)发现了沸石晶体的另一种应用：二氧化硅共掺杂法，利用磷光粉改进发射工艺，铋和铜原子产生新的荧光。(5)为估计激光玻璃的基本性质，建立了量子效率的测量方法。

The object of this research is to achieve high thermal-resistant laser materials with quartz host.The research results are as follows :(1) It was found that the fluorescence extinction in a quartz material produced by a conventional method was due to cluctering of doped atoms such as neodymium.(2) The new method was established to realize a uniform dispersion of doped atoms in quartz glass to avoid clustering in solgel quartz.The quantum efficiency was largely recovered and the fluorescence life time reached to 500 micro second.(3) Ther were founded many technologies to control vavle generation in quartz glass with particle selection of coloidal silica in solgel method, processing of preformed material in solgel process, an history in sintering temperature, and control of atomospheric gases.(4) Another application of zeolite crystal was found to co-doping method to silica, usage of phospher to improve an emission process, and new fluorescence from bismus and copper atoms.(5) Measurement method of quantum efficiency was newly established to estimate a basic property of the laser glass.