%0 Journal Article
%T Spectroscopic characteristics of Cr3+:Al2O3 polycrystalline transparent alumina ceramics<br>Cr3+:Al2O3透明多晶陶瓷光谱特性分析
%A Zeng Zhi-Jiang
%A Yang Qiu-Hong
%A Xu Jun
%A <br>曾智江
%A 杨秋红
%A 徐 军
%J 物理学报
%D 2005
%I 
%X Spectral properties of transparent polycrystalline Cr3+:Al2O3 ceramics were studied. The results indicated that the absorption peaks of polycrystalline Cr3+:Al2O3 ceramics co incide with the absorption spectrum of a ruby single crystal. The crystal field and Racah parameters were calculated according to the Tanabe-Sugano energy level diagram and absorption spectra. The crystal field intensity of Cr3+: Al2O3 polycrystalline ceramics is almost the same as that of Cr3+:Al2O3 single crystal, and the character istics of the emission spectra still retains the R-line emission even as the Cr< sup>3+ concentration increases up to 0.8wt%. In particular, one 670nm emis sion peak of Cr3+ was first found in the polycrystalline ceramics.
%K alumina
%K polycrystalline transparent ceramics
%K ion site
%K spectroscop ic characteristics<br>氧化铝，
%K 透明陶瓷，
%K 离子格位，
%K 光谱性质
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=6E709DC38FA1D09A4B578DD0906875B5B44D4D294832BB8E&cid=47EA7CFDDEBB28E0&jid=29DF2CB55EF687E7EFA80DFD4B978260&aid=A12B611D8595DB4F&yid=2DD7160C83D0ACED&vid=318E4CC20AED4940&iid=708DD6B15D2464E8&sid=60169EE47C0E7630&eid=D99B6336E87DEF63&journal_id=1000-3290&journal_name=物理学报&referenced_num=4&reference_num=8