生长和退火气氛对Cr：Mg_2SiO_4晶体光谱的影响  

INFLUENCE OF GROWTH AND ANNEALING ATMOSPHERE ON OPTICAL SPECTRA OF Cr:Mg_2SiO_4 CRYSTAL

作　　者：刘琳[1] 王祖仑 李沈军 刘海润[1] 陈京兰[1] 赵满兴 

机构地区：[1]中国科学院物理研究所

出　　处：《硅酸盐学报》1995年第4期459-463,共5页Journal of The Chinese Ceramic Society

基　　金：国家自然科学基金

摘　　要：在不同氧含量的气氛中生长了Ｃｒ：Ｍｇ＿２ＳｉＯ＿４晶体，研究了生长及退火气氛对晶体光谱的影响。实验表明，提高生长气氛中的氧含量，有利于４价Ｃｒ离子的形成。调节生长气氛中的氧含量，可以改变所生长晶体的荧光光谱，以满足可调谐激光的要求。晶体的退火实验表明，退火气氛对晶体光谱也有明显影响。研究结果有助于进一步加强对该晶体发光中心及其作用机理的认识。Cr:Mg_2SiO_4 tunable laser crystals were grown under the atmospheres with different oxygen con-tents. The influences of growth and annealing atmosphere on optical spectra of the crystal were studied.Experi-mental results show that the increase of oxygen content in growth atmosphere is favorable to the formation ofCr￣(4+) ions in crystal.The fluorescence spectra of crystal can be modified by controlling the oxygen content,so asto meet the needs of tunable laser,The annealing results show that annealing atmosphere has a considerable influ-ence on the crystal spectra as well,this is favorable to further understanding the emssion center and mechanismof the crystal.

关 键 词：镁橄榄石 可调谐激光 激光工作物质 生长 退火 

分 类 号：TN244[电子电信—物理电子学]