Optical and ESR study of Nd：YAG transparent polycrystalline ceramics  

作　　者：高伟男 申玉 薄勇 张文平 毕勇 许祖彦 

机构地区：[1]Research Center for Applied Laser, Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Beijing 100190, China

出　　处：《Chinese Optics Letters》2017年第5期50-52,共3页中国光学快报（英文版）

摘　　要：In this Letter, ceramic Nd：YAG is charactrizeby electron spin resonance （ESR） measurements. The ESR results indicate that the polycrystalline ceramic Nd：YAG has barely native defects and impurity ions localization defects, compared to an Nd：YAG crystal with the same Nd doping concentration, due to its density structure by sintering in a vacuum pure raw material and additives during the fabrication. It may conclude that the high quality ceramic Nd：YAG may have greater ability on optical characteristic, mechanical performance, and laser damage than that of the crystals, which is a promising candidate to use on laser diode-pumped solid-state lasers.In this Letter, ceramic Nd：YAG is charactrizeby electron spin resonance （ESR） measurements. The ESR results indicate that the polycrystalline ceramic Nd：YAG has barely native defects and impurity ions localization defects, compared to an Nd：YAG crystal with the same Nd doping concentration, due to its density structure by sintering in a vacuum pure raw material and additives during the fabrication. It may conclude that the high quality ceramic Nd：YAG may have greater ability on optical characteristic, mechanical performance, and laser damage than that of the crystals, which is a promising candidate to use on laser diode-pumped solid-state lasers.

关 键 词：Ceramic materials Crystal impurities Crystal structure Defects Doping (additives) Electron spin resonance spectroscopy Laser damage Magnetic moments Optically pumped lasers Polycrystalline materials Pumping (laser) Q switched lasers Sintering Solid state lasers 

分 类 号：TQ174.1[化学工程—陶瓷工业]