一种新型制备红外非线性晶体AgGaS_2的方法  

A New Reaction Route to Grow Infrared Nonlinear Crystal AgGaS_2

作　　者：吴海信[1] 黄飞[1] 倪友保[1] 王振友[1] 毛明生[1] 程干超[1] 

机构地区：[1]中国科学院安徽光学精密机械研究所,合肥230031

出　　处：《人工晶体学报》2010年第B06期208-211,共4页Journal of Synthetic Crystals

摘　　要：采用改进的Bridgman法生长出25mm×70mm的AgGaS2单晶,并对样品进行了退火处理。通过X射线粉末衍射(XRD)测试,证实利用该方法制备的单晶确为AgGaS2;利用红外分光光度计检测,晶体0.5～12μm波段透过率在60%以上(未镀膜),表明晶体品质良好。另外,还加工出两块不同角度5mm×5mm×5mm倍频元件,在2.79μmEr,Cr∶YSGG和9.6μmCO2激光器上实现了倍频光输出。AgGaS2 crystal with diameter of 25 mm and length of 70 mm was grown by modified Bridgman method, and then post heat treatment was carried out under certain conditions. X-ray power diffraction （XRD） reveal that the as grown product was AgGaS2, optical transmittance spectra present the crystal has high transition in the range of 0.5-12 μm with the value above 60%. Also, two pieces of crystal elements with the dimension 5 mm ×5 mm ×5 mm were prepared for type I frequency doubling （2.79 μm Er, Cr： YSGG and 9.6 μm CO2 lasers）, both of them got the correlated output wavelength successfully.

关 键 词：AgGaS2晶体 布里奇曼法 光学性能 倍频 

分 类 号：O78[理学—晶体学]