CAJ | 학술논문

报道了氟化物激光晶体 Yb3＋∶LiYF4的单晶生长与光谱性能.按照 n (LiF )∶ n (YF3)∶n (YbF3)＝51．5∶47．5∶1．0制备配合料,经干燥 HF气氛下的固相烧结合成制备出无水 Yb3＋∶LiYF4多晶料；采用非真空密闭条件下的坩埚下降法成功生长出系列?12 mm 尺寸的透明完整 Yb3＋∶LiYF4单晶.采用化学分析和光谱测量表征了所生长单晶的掺杂浓度和光谱性能,结果表明,Yb3＋离子已成功掺杂进入基质晶体,其有效分凝系数估算为0．455；此单晶在较宽波长范围内具有良好光学透过性,在896 nm 波长激发光作用下,该单晶具有930~1030 nm 波长范围的荧光发射,其荧光衰减寿命为1888μs.
보도료불화물격광정체 Yb3＋∶LiYF4적단정생장여광보성능.안조 n (LiF )∶ n (YF3)∶n (YbF3)＝51．5∶47．5∶1．0제비배합료,경간조 HF기분하적고상소결합성제비출무수 Yb3＋∶LiYF4다정료；채용비진공밀폐조건하적감과하강법성공생장출계렬?12 mm 척촌적투명완정 Yb3＋∶LiYF4단정.채용화학분석화광보측량표정료소생장단정적참잡농도화광보성능,결과표명,Yb3＋리자이성공참잡진입기질정체,기유효분응계수고산위0．455；차단정재교관파장범위내구유량호광학투과성,재896 nm 파장격발광작용하,해단정구유930~1030 nm 파장범위적형광발사,기형광쇠감수명위1888μs.
The Bridgman growth and spectral properties of fluoride laser crystal Yb3 + ∶LiYF4 are reported in this paper.According to the molar ratio of n (LiF)∶n (YF3 )∶n (YbF3 )=5 1.5∶47.5∶1.0,the anhydrous polycrys-talline material for Yb3 + ∶ LiYF4 crystal growth was synthesized by means of the fluoridation process under dried HF atmosphere at elevated temperature.A series of Yb3 + ∶LiYF4 single crystals with 12 mm in diameter were grown successfully by means of vertical Bridgman method under the sealed non-vacuum atmosphere.The dopant concentration and spectral properties of as-grown crystals were characterized by means of chemical anal-ysis and spectroscopic measurements respectively.It was confirmed that Yb3 + ions had been doped into LiYF4 host crystal with effective segregation coefficient estimated to be 0.455.The single crystals exhibit a high optical transmittance in a wide wavelength range from ultraviolet to infrared region.Under the photonic excitation at 896 nm,the single crystals possess a fluorescence emission at the wavelength ranges from 930 to 1 030 nm with decay life time of 1 888 μs.