Cr,Nd:YAG陶瓷作为太阳光抽运材料的可行性研究

摘要

In order to study the feasibility of Cr,Nd:YAG ceramic used for solar-pumped lasers, the absorption spectra of Cr, Nd: YAG ceramic and solar spectrum were measured with a fiber optic spectrometer actually, the absorption coefficient curve was calculated, the percentage of the solar energy which could be absorbed by Cr, Nd: YAG ceramics was calculated. In an assumed condition, the threshold of pumped power density of the medium was calculated. The results show that the Cr,Nd:YAG ceramic have broad absorption bands at visible light and near-infrared band and the matching degree reached 38.44％, so Ct, Nd:YAG ceramic can be chosen as the most suitable medium for solar-pumped lasers.%为了研究Cr,Nd:YAG陶瓷作为太阳光抽运材料的可行性,采用光纤光谱仪实际测量了太阳光谱及其吸收光谱,计算了吸收系数曲线,以及Cr,Nd:YAG陶瓷吸收谱与太阳光谱的匹配程度,并在一定假设条件下,计算了介质的阈值抽运功率密度.结果表明,Cr,Nd:YAG陶瓷在可见光和近红外波段具有较宽的吸收带,其各个吸收带的总能量占太阳常数的38.44%,达到了很高的光谱匹配程度,证实了Cr,Nd:YAG陶瓷是太阳光抽运激光器工作物质的理想选择.