High transparency Pr:Y_(2)O_(3) ceramics:A promising gain medium for red emission solid-state lasers

作     者：Qing LI Ying WANG Jun WANG Jie MA Meng NI Hui LIN Jian ZHANG Peng LIU Xiaodong XU Dingyuan TANG Qing LI;Ying WANG;Jun WANG;Jie MA;Meng NI;Hui LIN;Jian ZHANG;Peng LIU;Xiaodong XU;Dingyuan TANG

作者机构：Jiangsu Key Laboratory of Advanced Laser Materials and DevicesSchool of Physics and Electronic EngineeringJiangsu Normal UniversityXuzhou 221116China School of Electrical and Electronic EngineeringNanyang Technological UniversitySingapore 639798Singapore Engineering Research Center of Optical Instrument and SystemMinistry of Education and Shanghai Key Lab of Modern Optical SystemUniversity of Shanghai for Science and TechnologyShanghai 200093China Shanghai Institute of CeramicsChinese Academy of SciencesShanghai 201899China 

出 版 物：《Journal of Advanced Ceramics》 (先进陶瓷（英文）)

年 卷 期：2022年第11卷第6期

页      面：874-881页

核心收录：

学科分类：08[工学] 0805[工学-材料科学与工程（可授工学、理学学位）] 080502[工学-材料学] 

基　　金：The research is partially supported by the fund of A*Star of Singapore(Grant No.A1883C0003) the National Natural Science Foundation of China(Grant Nos.62075089,61875078,and 61861136007) Natural Science Foundation of Jiangsu Province(Grant Nos.BK20191002 and BK20190992) Postgraduate Research&Practice Innovation Program of Jiangsu Province(Grant No.KYCX20_2339) 

主　　题：praseodymium ions(Pr3+) Y_(2)O_(3)ceramic valence state defect state optical properties 

摘      要：Highly transparent 0.5 and 1.0 at%Pr-doped Y_(2)O_(3)ceramics were fabricated by vacuum sintering plus hot isostatic pressing(HIP)*** selection of suitable pre-sintering temperatures and right microstructures before HIP was critical to obtain high density of the final sintered *** well-densified ceramics had pore-free microstructures with an average grain size of about 1μ*** was also found that the charge states of the Pr ions could be changed through regulating the annealing atmospheres,resulting in different absorption and emission characteristics in the visible wavelength *** in reducing atmosphere(5%H_(2)/95%Ar)favored the formation of Pr^(3+),resulting in stronger red emissions,while annealing in oxygen atmosphere led to the rise of lattice constant due to the concentration increase of oxygen *** H_(2)/Ar-annealed 0.5 at%Pr:Y_(2)O_(3)ceramics exhibited strong red emission at 600–675 nm,which may be a promising gain material for red solid-state lasers.