Preparation And Properties Of Tb³⁺ Doped Gallium Borate Faraday Glass

In this paper,Tb³⁺single-doped and Tb³⁺-X(X=Pr₆O₁₁、Nd₂O₃、Ho₂O₃、Er₂O₃、Ce O₂、Dy₂O₃ and Fe₂O₃)double-doped:5Ga₂O₃-（67-x）B₂O₃-3Zn O-5P₂O₅ magneto-optical glasses,10Ga₂O₃-（62-x）B₂O₃-3Zn O-5P₂O₅ magneto-optical glasses and 5Ga₂O₃-（70-x）B₂O₃-3Zn O-2Ti O₂ magneto-optical glasses were prepared by high-temperature melting method.The structure analysis,physical property analysis,luminescence property analysis and magneto-optical property analysis of the prepared magneto-optical glasses were carried out,respectively,the results are as follows.（1）Tb³⁺single-doped and Tb³⁺-X double-doped 5Ga₂O₃-（67-x）B₂O₃-3Zn O-5P₂O₅magneto-optical glasses were prepared,the influence of doping different concentrations of Tb₂O₃ and doping different substances on the comprehensive properties of magneto-optical glasses were explored.At the 633 nm incident light wavelength,the Verdet constant of5Ga₂O₃-57B₂O₃-3Zn O-5P₂O₅-30Tb₂O₃ glass reached-134.87 rad/（T·m）,and the Verdet constant of 5Ga₂O₃-57B₂O₃-3Zn O-5P₂O₅-30Tb₂O₃-1Ho₂O₃ glass reached-140.45 rad/（T·m）.（2）Tb³⁺single-doped and Tb³⁺-X double-doped 10Ga₂O₃-（62-x）B₂O₃-3Zn O-5P₂O₅magneto-optical glasses were prepared,the influence of doping different concentrations of Tb₂O₃ and doping different substances on the comprehensive properties of magneto-optical glasses were explored.At the 633 nm incident wavelength,the Verdet constant of 10Ga₂O₃-42B₂O₃-3Zn O-5P₂O₅-40Tb₂O₃ glass reached-138.18 rad/（T·m）,and the 10Ga₂O₃-42B₂O₃-3Zn O-5P₂O₅-40Tb₂O₃-1Ho₂O₃ glass shows the best magneto-optical properties,with the corresponding Verdet constant being-143.45 rad/（T·m）.（3）Tb³⁺single-doped and Tb³⁺-X double-doped 5Ga₂O₃-（70-x）B₂O₃-3Zn O-2Ti O₂magneto-optical glasses were prepared,the influence of doping different concentrations of Tb₂O₃ and doping different substances on the comprehensive properties of the magneto-optical glasses were explored,and the influence of different incident wavelengths and temperatures on the magneto-optical properties of Tb³⁺single-doped and Tb³⁺-X double-doped 5Ga₂O₃-（70-x）B₂O₃-3Zn O-2Ti O₂ glasses were analyzed.At the 633 nm incident light wavelength,the Verdet constant of 5Ga₂O₃-50B₂O₃-3Zn O-2Ti O₂-40Tb₂O₃ and 5Ga₂O₃-50B₂O₃-3Zn O-2Ti O₂-40Tb₂O₃-1Ho₂O₃ magneto-optical glasses reached-155.20 rad/（T·m）and-156.45 rad/（T·m）,respectively.In addition,at the same incident light wavelength,when the temperature was 273.15 K,the Verdet constant of 5Ga₂O₃-50B₂O₃-3Zn O-2Ti O₂-40Tb₂O₃glass reaches-176.28 rad/（T·m）.when the temperature was 298.15 K and the incident light wavelength was 515 nm,the Verdet constant of 5Ga₂O₃-50B₂O₃-3Zn O-2Ti O₂-40Tb₂O₃ glass reached-185.25 rad/（T·m）.