摘要
采用高温溶液法，以Ｂｉ２Ｏ３／Ｂ２Ｏ３为助熔剂成功地生长出掺铋复合稀土铁石榴石（ＴｂＹｂＢｉ）３Ｆｅ５Ｏ１２（简称ＴｂＹｂＢｉＩＧ）晶体。晶体外形规则，最大尺寸为７×６×４ｍｍ３，Ｘ射线衍射分析证实，生长的晶体为ＴｂＹｂＢｉＩＧ单相单晶体，扫描电镜能谱分析其组成为Ｔｂ２．０６Ｙｂ０．４６Ｂｉ０．４８Ｆｅ５Ｏ１２。在１．０μｍ～１．７μｍ波段测量出晶体法拉第旋转谱和光吸收谱。当λ＝１．５５μｍ时，在１０°Ｃ～８０°Ｃ温度范围内测得法拉第旋转θＦ的温度系数为ｄθＦ／ｄＴ＝－２．３×１０－２ｄｅｇ·ｍｍ－１Ｋ－１。研究结果表明，ＴｂＹｂＢｉＩＧ单晶体在近红外波段θＦ约为ＹＩＧ单晶的３倍，温度系数小。
The Bi 3+ substituted composite rare earth iron garnet (TbYbBi) 3Fe 5O 12 (TbYbBiIG) bulk single crystals have been successfully grown by using Bi 2O 3/B 2O 3 as a flux. The wavelength and temperature dependence of Faraday rotation of TbYbBiIG have been measured together with the optical absorption spectra in the wavelength range of 1.0～1.7 μm. The Faraday rotation temperature coefficient of a new type TbYbBiIG bulk crystal is -2.3×10 -2 (deg/mm·K) in temperature range of 10°C to 80°C and it is expected to be used as a more practical Faraday rotator for optical isolator with temperature stable isolation.
出处
《光学学报》
EI
CAS
CSCD
北大核心
1997年第5期626-629,共4页
Acta Optica Sinica
基金
国家自然科学基金
