摘要
根据Ｄｅｘｔｅｒ敏化发光理论建立Ｔｉ３＋－Ｔｉ３＋离子间能量共振转移模型，计算出Ｔｉ：Ａｌ２Ｏ３晶体发生浓度猝灭的Ｔｉ３＋离子临界距离Ｒｃ及晶体掺杂的临界浓度Ｎｃ与实测光谱数据进行比较，认为浓度达到Ｎ＝１．２８×１０２０ｃｍ－３（或０．３８ｗｔ％），相应峰值吸收系数为α４９０＝６．０ｃｍ－１时，仍未发生明显的浓度猝灭现象。
A model of resonance energy transferring among Ti3+ ions in Ti: A12O3 crystalwas setup according the Dexter theory of sensitization luminescence, from with the criticaldistance R. of Ti3+ ions were estimated, between which concentration quenching could takeplace and the correspondent doping concentration N.' By the comparison with the measuredspectra data,obvious concentration quenching has not been observed even if the doping levelreaches 1.28 X 1020 cm-3 (or 0. 38wt% ).
出处
《中国激光》
EI
CAS
CSCD
北大核心
1994年第7期576-580,共5页
Chinese Journal of Lasers
