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以K2W2O7为助熔剂,Tm3+掺杂摩尔分数为8%,采用顶部籽晶提拉法生长出了单斜晶系的铥掺杂钨酸鐿钾[Tm3+:KYb(WO4)2,Tm:KYbW]晶体。测试了晶体的红外光谱和Raman光谱,并对出现的峰值进行了振动归属。测量了晶体的吸收光谱和荧光光谱,计算了相应的光谱参数。吸收光谱显示:Yb3+在945,958nm处吸收峰最强,半峰宽为91nm。荧光光谱表明:Tm:KYbW晶体在1735nm和1759nm附近有较强的发射峰,主峰1759nm处的发射线宽达146nm,因此,Tm:KYbW晶体可作为可调谐激光增益介质。晶体的上转换荧光谱表明:在481nm和646nm处分别得到了上转换蓝光和红光,并分析了相应的上转换机制。
Tm3 +: KYb (WO4) 2, Tm: KYbW] was grown by monocrystalline monoclinic system with K2W2O7 as flux and Tm3 + doping mole fraction as 8% Crystal. The infrared spectra and Raman spectra of the crystals were tested and the peaks appearing were assigned to vibration. The absorption and fluorescence spectra of the crystals were measured and the corresponding spectral parameters were calculated. Absorption spectrum shows that Yb3 + has the strongest absorption peak at 945 and 958 nm and the half-width of the peak is 91 nm. Fluorescence spectra show that the Tm: KYbW crystal has a strong emission peak near 1735nm and 1759nm, and the emission line at the main peak at 1759nm reaches 146nm. Therefore, the Tm: KYbW crystal can be used as a tunable laser gain medium. The up-conversion fluorescence spectrum of the crystal shows that the upconversion blue and red are respectively obtained at 481nm and 646nm, and the corresponding up-conversion mechanism is analyzed.