氟锆酸盐玻璃中Tm^3＋和（Tm^3＋＋Ho^3＋）离子的光谱研究

给出氟锆酸（ＺＢＬＡＮ）玻璃中＾Ｔｍ＾３＋和Ｈｏ＾３＋离子的Ｑｔ参量，并与氧化物玻璃中Ｔｍ＾３＋和Ｈｏ＾３＋的Ｑｔ参量进行了比较，用３７５ｎｍ和４６８ｎｍ波长激发单掺ＺＢＬＡＮ中Ｔｍ＾３＋离子，获得来自Ｄ，２，＾３Ｈ４，Ｇ４能级不同发射波长的发光强度随掺杂浓度的变化，而用小于１μｍ的激发波长激发发单掺Ｔｍ＾３＋或Ｈｏ＾３＋样品，获得近红外区发射光谱。文中给出掺杂浓度对于Ｔｍ＾３＋和Ｈｏ＾＋近红外区

Spectrascopy on Tm3+and (Tm3++Ho3+) Ions in Fluoroziconate Glasses

The parameters of Tm3+ and Ho3+ ions in ZBLAN are given, and compared with Ω of Tm3+ and Ho3+ ions in oxide glasses. Under excitation of Tm3+ ion in the single Tm3+ doped ZBLAN by 357 nm (1D2) or 486 nm (1G4) wavelength beam, the luminescence intensities of the differeny emission wavelength from 1D2, 4G4 levels as a function of the doped concentretions have been obtained. When Tm3+ or Ho3+ ions of the single doped sample excited by <1 μm wavelength, the IR luminescence spectra are measured. The effect of ion concentration on the IR emission intensity and fluorescence lifetime of Tm3+ and Ho3+ ions were discussed. Tm3+ (3F4)→Ho3+ (5I7) energy transfer in(Tm3++Ho3+) co—doped ZBLAN glasses is very effective, its transfer efficiency is over 80% and dependent on the doped concentration.