人工晶体学报2026，Vol.55Issue(9)：1363-1370,8.DOI:10.16553/j.cnki.issn1000-985x.2026.0108
KDy(WO4)2晶体的TSSG法生长及磁光性能研究
TSSG Method Growth and Magneto-Optical Properties of KDy(WO4)2 Crystals
摘要
Abstract
In this paper,KDy(WO4)2(KDW)crystal with a size of 40 mm × 40 mm × 15 mm was successfully grown by top-seeded solution growth(TSSG)method.The crystal structural,optical quality,thermal properties,laser induced damage threshold and magneto-optical properties of KDW crystal were comprehensively studied.The rocking curve shows that the full width at half-maximum of KDW(020)wafer is 0.071 2°,indicating that the crystal has good crystal quality.The transmittance curve shows that the KDW(020)wafer has a high transmittance in the visible-near infrared band.The results of single crystal X-ray diffraction(SCXRD)refinement show that KDW crystal belongs to monoclinic I2/a space group,and[DyO8],[WO6]and[KO10]groups constitute the crystal skeleton.The[WO6]-related vibration mode in Raman spectra matches the monoclinic KRe(WO4)2 system.Thermal tests indicate that the thermal conductivity,thermal diffusion coefficient and specific heat capacity of KDW crystal at 298 K are 3.792 W/(m·K),1.692 mm2/s and 0.307 J/(g·K),respectively.The laser induced damage threshold of KDW(020)wafer is 745.1 MW/cm2 at 1 064 nm and 10 ns.Based on the extinction method,the Verdet constants of KDW crystal at 405,532 and 635 nm are-208.30,-82.17 and-54.01 rad/(m·T),respectively,and the corresponding magneto-optical figure of merit(FOM)are 768.21,615.77 and 412.52(°)/T,respectively.This study shows that KDW crystal has excellent thermal/damage resistant properties and good visible Faraday rotation ability,and is a competitive magneto-optical crystal in visible-near infrared band.关键词
磁光晶体/KDW/钨酸盐/TSSG法/Verdet常数/晶体生长Key words
magneto-optical crystal/KDW/tungstate/TSSG method/Verdet constant/crystal growth分类
数理科学引用本文复制引用
袁亚舟,陈丹风,姜喜亮,冯桂青,许谢铭,徐刘伟,王帅华,吴少凡..KDy(WO4)2晶体的TSSG法生长及磁光性能研究[J].人工晶体学报,2026,55(9):1363-1370,8.基金项目
功能晶体与器件全国重点实验室自主部署项目(GNJT-2025-QN04,GNJT-2025-ZD06) （GNJT-2025-QN04,GNJT-2025-ZD06）
福建省制造业技术创新重点攻关及产业化项目(2026G025) （2026G025）
福建省自然科学基金(2024J011313) （2024J011313）
福州市科技项目(2025-SG-015,2026-SG-023) （2025-SG-015,2026-SG-023）
闽都创新实验室自主部署项目(2024CXY109) （2024CXY109）
