人工晶体学报2026，Vol.55Issue(9)：1371-1376,6.DOI:10.16553/j.cnki.issn1000-985x.2026.0051
YIG磁光晶体的光学浮区法生长
Optical Floating Zone Method Growth of YIG Magneto-Optical Crystals
摘要
Abstract
Yttrium iron garnet(Y3Fe5O12,YIG)crystals possess exceptional magneto-optical properties,rendering pivotal for optical communication and photonic integration.Herein,YIG single crystals were grown via the optical floating zone method,and the influence of growth atmosphere on optical quality of YIG single crystal was systematically investigated.The results show that phase-pure garnet structures are successfully obtained under both air and different oxygen partial pressure atmospheres.Crucially,crystals grown under pure O2 atmosphere exhibit superior transmittance performance in the infrared band,and its transmittance is close to the theoretical value(～75％).This is primarily due to the higher oxygen partial pressure during the growth process,which effectively inhibits the valence change of Fe3+.Fe 2p X-ray photoelectron spectroscopy analysis further reveals that the relative content of Fe2+is as high as 62％(mole fraction)in grown crystals under air atmosphere,but the relative content of Fe2+is reduced to 9％(mole fraction)in grown crystals under pure O2 atmosphere,which directly confirms the effective inhibition of oxygen partial pressure on the valence change of Fe3+from the chemical state level,thus facilitating preparation of high-quality magneto-optical crystals.The magneto-optical performance test at 1 386 nm further confirms that the prepared YIG crystal has good magneto-optical modulation performance,and its Faraday rotation angle can reach 225(°)/cm.This study provides a feasible path for the preparation of high-quality iron-based garnet crystals,which is of great significance for promoting the development of corresponding magneto-optical crystal functional devices.关键词
YIG/磁光晶体/晶体生长/光学浮区法/生长气氛Key words
YIG/magneto-optical crystal/crystal growth/optical floating zone method/growth atmosphere分类
数理科学引用本文复制引用
傅昭澍,王树贤,路大治,武奎,于浩海,张怀金..YIG磁光晶体的光学浮区法生长[J].人工晶体学报,2026,55(9):1371-1376,6.基金项目
国家自然科学基金(52472008,52025021,52372009) （52472008,52025021,52372009）
山东大学青年学者未来计划 （）
