Solid-state-reaction fabrication and properties of a high-doping Nd:YAG transparent laser ceramic  

作　　者：Jiang LI Yusong WU Yubai PAN Wenbin LIU Liqiong AN Shiwei WANG Jingkun GUO 

机构地区：[1]Shanghai Institute of Ceramics,Chinese Academy of Sciences,Shanghai 200050,China [2]Graduate School of the Chinese Academy of Sciences,Beijing 10039,China

出　　处：《Frontiers of Chemical Science and Engineering》2008年第3期248-252,共5页化学科学与工程前沿（英文版）

基　　金：supported by the Key Basic Research Project of Science and Technology of Shanghai(Grant No.07DJ14001);the Applied Basic Research Programs of Science and Technology Commission Foundation of Shanghai(Grant Nos.05DZ22005 and 06DZ11417);the Innovation Project of Shanghai Institute of Ceramics,Chinese Academy of Sciences and the Fund of National Engineering Research Center for Optoelectronic Crystalline Materials(Grant No.2005DC105003).

摘　　要：High-quality neodymium-doped yttrium aluminum garnet(Nd:YAG)transparent ceramic(4.0 mole percent)was fabricated by a solid-state reaction method and vacuum sintering.The microstructure,optical transmittance,spectral properties and laser performance were investigated.The average grain size of the sample is about 10 mm.The transmittance of a 2.8-mm thick sample reaches 79.5%at the laser wavelength of 1064 nm.The highest absorption peak is centered at 807 nm and the absorption coefficient is 13.9 cm^(-1).The absorption coefficient at the laser wavelength is 0.2 cm^(-1).The main emission peak is at 1064 nm and the fluorescence lifetime is 102 ms.A laser diode(808 nm)whose maximum output is about 1000 mW was used as a pump source and an endpumped laser experiment was performed.The 1064 nm-CW-laser output was obtained and the threshold is 733 mW.With 998 mW of maximum absorbed pump power,a laser output of 17 mW is obtained with a slope efficiency of 6.1%.

关 键 词：transparent laser ceramic optical properties microstructure high-doping concentration solid state reaction 

分 类 号：TN2[电子电信—物理电子学]