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人工晶体学报 ›› 2026, Vol. 55 ›› Issue (9): 1363-1370.DOI: 10.16553/j.cnki.issn1000-985x.2026.0108

• 专栏·研究论文 • 上一篇    下一篇

KDy(WO4)2晶体的TSSG法生长及磁光性能研究

袁亚舟1,2(), 陈丹风2, 姜喜亮2, 冯桂青2, 许谢铭1, 徐刘伟1,2, 王帅华1,2(), 吴少凡1,2   

  1. 1.闽都创新实验室(中国福建光电信息科学与技术创新实验室),福州 350108
    2.中国科学院福建物质结构研究所,功能晶体与器件全国重点实验室,福州 350002
  • 收稿日期:2026-06-02 出版日期:2026-09-20 发布日期:2026-09-29
  • 通信作者: 王帅华,博士,正高级工程师。E-mail:shwang@fjirsm.ac.cn
  • 作者简介:袁亚舟(1999—),男,江苏省人,博士研究生。E-mail:yuanyazhou@fjoel.cn
    王帅华,博士生导师,国家级青年人才,福建省科技创新领军人才,福建省杰青,中国晶体学会唐有祺青年学者。作为项目负责人,承担国家自然基金委重点等项目25项,发表文章50余篇,授权发明专利20余件,荣获省部级科技奖3项。长期从事磁光等功能晶体与器件应用研究,相关成果已经在国家重大工程与战略性新兴产业获得应用。
  • 基金资助:
    功能晶体与器件全国重点实验室自主部署项目(GNJT-2025-QN04);功能晶体与器件全国重点实验室自主部署项目(GNJT-2025-ZD06);福建省制造业技术创新重点攻关及产业化项目(2026G025);福建省自然科学基金(2024J011313);福州市科技项目(2025-SG-015);福州市科技项目(2026-SG-023);闽都创新实验室自主部署项目(2024CXY109)

TSSG Method Growth and Magneto-Optical Properties of KDy(WO4)2 Crystals

YUAN Yazhou1,2(), CHEN Danfeng2, JIANG Xiliang2, FENG Guiqing2, XU Xieming1, XU Liuwei1,2, WANG Shuaihua1,2(), WU Shaofan1,2   

  1. 1.Fujian Science & Technology Innovation Laboratory for Optoelectronic Information of China,Fuzhou 350108,China
    2.State Key Laboratory of Functional Crystals and Devices,Fujian Institute of Research on the Structure of Matter,Chinese Academy of Sciences,Fuzhou 350002,China
  • Received:2026-06-02 Online:2026-09-20 Published:2026-09-29

摘要: 本文采用顶部籽晶溶液生长(TSSG)法成功生长了尺寸为40 mm×40 mm×15 mm的KDy(WO4)2(KDW)晶体,并系统研究了其晶体结构、光学质量、热学性能、激光诱导损伤阈值和磁光性能。摇摆曲线显示KDW(020)晶片的半峰全宽为0.071 2°,表明晶体具有较好结晶质量。透过率曲线表明,KDW(020)晶片在可见-近红外波段具有较高透过率。单晶X射线衍射(SCXRD)精修结果表明,KDW晶体属于单斜I2/a空间群,[DyO8]、[WO6]和[KO10]基团共同构成晶体骨架。拉曼光谱中[WO6]相关振动模式与单斜KRe(WO4)2体系相匹配。热学测试表明,KDW晶体在298 K下的热导率、热扩散系数和比热容分别为3.792 W/(m·K)、1.692 mm2/s和0.307 J/(g·K)。在1 064 nm、10 ns条件下,KDW(020)晶片的激光诱导损伤阈值为745.1 MW/cm2。基于消光法测得KDW晶体在405、532和635 nm下的Verdet常数分别为-208.30、-82.17和-54.01 rad/(m·T),对应磁光品质因子(FOM)分别为768.21、615.77和412.52 (°)/T。本研究表明,KDW晶体兼具良好热学/抗损伤性能及可见光法拉第旋转能力,是一种具有潜力的可见-近红外磁光晶体。

关键词: 磁光晶体; KDW; 钨酸盐; TSSG法; Verdet常数; 晶体生长

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.

Key words: magneto-optical crystal; KDW; tungstate; TSSG method; Verdet constant; crystal growth

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