Nd∶TSAG晶体的生长及性能研究

O73; 本文采用提拉法首次生长了晶体尺寸为φ50 mm × 100 mm的Nd∶TSAG磁光晶体,对其结构、光谱、磁光及热学性能进行了研究,并对振子强度和线强、强度参数Ωt、4F3/2→4IJ能级间的跃迁概率、能级辐射寿命、荧光分支比等光谱参数进行了计算.对Nd∶TSAG多晶样品掺杂浓度进行了优化,Nd3+的最佳掺杂浓度(原子数分数)为1％.晶体及粉末X射线衍射分析结果表明,晶体为纯相且结晶质量较好,Nd3+在TSAG晶体中的分凝系数为0.64.Nd∶TSAG晶体在可见和近红外波段,除了 Tb3+和Nd3+的特征吸收,透过率达到80％以上.在808 nm激发下,Nd∶TSAG的最强荧光峰在1...

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Published in人工晶体学报 Vol. 53; no. 11; pp. 1936 - 1943
Main Authors 窦仁勤, 黄磊, 王小飞, 高进云, 刘文鹏, 罗建乔, 张庆礼
Format Journal Article
LanguageChinese
Published 先进激光技术安徽省实验室,合肥 230037%中国科学院合肥物质科学研究院,安徽光学精密机械研究所,光子器件与材料安徽省重点实验室,合肥 230031 15.11.2024
中国科学院合肥物质科学研究院,安徽光学精密机械研究所,光子器件与材料安徽省重点实验室,合肥 230031
中国科学技术大学,合肥 230026
先进激光技术安徽省实验室,合肥 230037
Subjects
晶体生长
magneto-optical property
磁光晶体
magneto-optical crystal
光谱分析
spectral analysis
热导率
crystal growth
thermal conductivity
Nd∶TSAG
磁光性能
Online AccessGet full text
ISSN1000-985X
DOI10.3969/j.issn.1000-985X.2024.11.012

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Abstract O73; 本文采用提拉法首次生长了晶体尺寸为φ50 mm × 100 mm的Nd∶TSAG磁光晶体,对其结构、光谱、磁光及热学性能进行了研究,并对振子强度和线强、强度参数Ωt、4F3/2→4IJ能级间的跃迁概率、能级辐射寿命、荧光分支比等光谱参数进行了计算.对Nd∶TSAG多晶样品掺杂浓度进行了优化,Nd3+的最佳掺杂浓度(原子数分数)为1％.晶体及粉末X射线衍射分析结果表明,晶体为纯相且结晶质量较好,Nd3+在TSAG晶体中的分凝系数为0.64.Nd∶TSAG晶体在可见和近红外波段,除了 Tb3+和Nd3+的特征吸收,透过率达到80％以上.在808 nm激发下,Nd∶TSAG的最强荧光峰在1 070 nm附近.Nd∶TSAG晶体在473、532、632.8、1 064 nm波长处的折射率分别为1.925 9、1.915 3、1.903 8和1.885 2,拟合了四参数Sellmeier折射率方程.采用消光法测试了 Nd∶TSAG晶体在405、532、635、1 064 nm波长处的Verdet 常数分别为 599.8、202.8、152.3、46.8 rad·m-1·T-1.室温下,Nd∶TSAG 晶体的热导率为 3.95 W/(m·K).研究结果表明,Nd∶TSAG是优异的磁光晶体,也是潜在的优异激光晶体,有望同时实现磁光和激光的功能.
AbstractList O73; 本文采用提拉法首次生长了晶体尺寸为φ50 mm × 100 mm的Nd∶TSAG磁光晶体,对其结构、光谱、磁光及热学性能进行了研究,并对振子强度和线强、强度参数Ωt、4F3/2→4IJ能级间的跃迁概率、能级辐射寿命、荧光分支比等光谱参数进行了计算.对Nd∶TSAG多晶样品掺杂浓度进行了优化,Nd3+的最佳掺杂浓度(原子数分数)为1％.晶体及粉末X射线衍射分析结果表明,晶体为纯相且结晶质量较好,Nd3+在TSAG晶体中的分凝系数为0.64.Nd∶TSAG晶体在可见和近红外波段,除了 Tb3+和Nd3+的特征吸收,透过率达到80％以上.在808 nm激发下,Nd∶TSAG的最强荧光峰在1 070 nm附近.Nd∶TSAG晶体在473、532、632.8、1 064 nm波长处的折射率分别为1.925 9、1.915 3、1.903 8和1.885 2,拟合了四参数Sellmeier折射率方程.采用消光法测试了 Nd∶TSAG晶体在405、532、635、1 064 nm波长处的Verdet 常数分别为 599.8、202.8、152.3、46.8 rad·m-1·T-1.室温下,Nd∶TSAG 晶体的热导率为 3.95 W/(m·K).研究结果表明,Nd∶TSAG是优异的磁光晶体,也是潜在的优异激光晶体,有望同时实现磁光和激光的功能.
Abstract_FL Nd∶TSAG magneto-optical crystal with the size of φ50 mm × 100 mm were grown by Czochralski method for the first time.The structure,spectra,magneto-optical,and thermal properties of the crystal were studied in detail.Spectral parameters,such as oscillator strength,line strength,intensity parameter℃t,transition probability between 4F3/2→4IJ energy levels,radiation lifetime,and fluorescence branching ratio were calculated.The doping concentration of Nd∶TSAG polycrystalline samples was optimized,and the best doping concentration of Nd3+(atomic fraction)is 1％.The results of X-ray diffraction analysis of crystal and powder show that the crystal has a pure phase and good crystal quality.The separation coefficient of Nd3+in TSAG crystal is 0.64.In the visible and near infrared bands,the transmittance of Nd∶TSAG crystals is over 80％,except for the characteristic absorption of Tb3+and Nd3+.With 808 nm excitation,the strongest fluorescence peak of Nd∶TSAG is around 1 070 nm.The refractive indices of Nd∶TSAG crystals at 473,532,632.8,and 1 064 nm are 1.925 9,1.915 3,1.903 8,and 1.885 2,respectively.The four-parameter Sellmeier refractive index equation is fitted.The Verdet constants of Nd∶TSAG measured by extinction method at 405,532,635,and 1 064 nm are 599.8,202.8,152.3,and 46.8 rad·m-1·T-1,respectively,which are higher than that of TGG crystals.At room temperature,the thermal conductivity of Nd∶TSAG crystals is 3.95 W/(m·K).The results show that Nd∶TSAG is an excellent magneto-optical crystal and a potential excellent laser crystal.Meanwhile,it is promising to realize the synergistic effect of magneto-optic and laser.
Author 刘文鹏
黄磊
王小飞
张庆礼
高进云
罗建乔
窦仁勤
AuthorAffiliation 中国科学院合肥物质科学研究院,安徽光学精密机械研究所,光子器件与材料安徽省重点实验室,合肥 230031;先进激光技术安徽省实验室,合肥 230037%中国科学院合肥物质科学研究院,安徽光学精密机械研究所,光子器件与材料安徽省重点实验室,合肥 230031;先进激光技术安徽省实验室,合肥 230037;中国科学技术大学,合肥 230026
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Author_FL WANG Xiaofei
ZHANG Qingli
HUANG Lei
LIU Wenpeng
DOU Renqin
GAO Jinyun
LUO Jianqiao
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DocumentTitle_FL Growth and Properties of Nd∶TSAG Crystal
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Issue 11
Keywords 晶体生长
magneto-optical property
磁光晶体
magneto-optical crystal
光谱分析
spectral analysis
热导率
crystal growth
thermal conductivity
Nd∶TSAG
磁光性能
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PublicationTitle 人工晶体学报
PublicationTitle_FL Journal of Synthetic Crystals
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Publisher 先进激光技术安徽省实验室,合肥 230037%中国科学院合肥物质科学研究院,安徽光学精密机械研究所,光子器件与材料安徽省重点实验室,合肥 230031
中国科学院合肥物质科学研究院,安徽光学精密机械研究所,光子器件与材料安徽省重点实验室,合肥 230031
中国科学技术大学,合肥 230026
先进激光技术安徽省实验室,合肥 230037
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Title Nd∶TSAG晶体的生长及性能研究
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