幅照处理对Ti:Al_2O_3晶体光谱的改变  

The change of spectra of Ti: Al_2O_3 crystals by irradiation

作　　者：马健[1] 杜懋陆[1] 陈庆汉[2] 

机构地区：[1]西南民族大学电气信息工程学院,成都610041 [2]西南技术物理研究所,成都610041

出　　处：《西南民族大学学报（自然科学版）》2006年第6期1227-1230,共4页Journal of Southwest Minzu University(Natural Science Edition)

基　　金：国家自然科学基金(项目编号:50372053);成都市科技计划项目(项目编号:2005-38-162);西南民族大学青年项目(项目编号:234185)

摘　　要：本文用提拉法生长了Ti:Al2O3晶体,并测定了γ光子幅照处理后的晶体样品的荧光谱和吸收谱.不同于未幅照的钛宝石光谱,本工作所测定的光谱中出现了多个峰值,文章分析了出现该现象的可能原因.Ti: Al2O3 Crystals are grown by the Czochralski method in a highly pure N2 atmosphere and the titanium ions concentration reachs up to 0.08–0.1wt%.After γ-irradiation treatment,the fluorescence spectra and absorption spectra are measured at room temperature for samples with high-optical quality.Unlike the previously reported spectra of Ti: Al2O3 crystal without γ-irradiation,the fluorescence and absorption spectra in this work present several new peaks.The possible reasons for the forming of the new peaks in fluorescence and absorption spectra are discussed in this paper.

关 键 词：Ti:Al2O3 晶体生长 γ光子幅照 荧光谱 吸收谱 

分 类 号：O561.2[理学—原子与分子物理]