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中国物理学会期刊

Tm3+,Yb3+共掺ZBLAN玻璃中的能量传递与上转换

CSTR: 32037.14.aps.46.2454

ENERGY TRANSFER AND UPCONVERSION IN Tm3+ AND Yb3+ CODOPED ZBLAN GLASS

CSTR: 32037.14.aps.46.2454
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  • ZBLAN∶Tm3+,Yb3+玻璃在970nm二极管激光照射下发射明亮丰富的蓝、红上转换荧光.1G4和3F4能级的发光是由Yb3+向Tm3+的逐步能量传递而来.而1D2能级发光是进一步由Tm3+离子之间的交叉能量传递而来.分析了Tm3+离子间的交

     

    Under the pumping of a 970nm diode laser the Tm3+ and Yb3+ codoped ZBLAN glass emits strong blue and red upconverted light.The luminescence of 1G4 and 3F4 levels results from the conse-quential Yb3+ to Tm3+ energy transfer,whereas the 1D2 level is excited by a further cross energy transfer among Tm3+ ions.The cross-relaxations of Tm3+ ions and back energy transfer of Tm3+ to Yb3+ was also observed.Furthermore,after an investigation of the special characteristic of Tm3+ and Yb3+ codoped system we think that this system is advantageous to the improvement of the net efficiency of upconversion luminesce.

     

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