Enhanced emission at 2.85 μm of Ho 3+ /Pr 3+ co-doped α-Na Y
發(fā)布時間：2024-07-02 19:59
The Ho3+/Pr3+ co-doped Na YF4 single crystals with various Pr3+ concentrations and constant Ho3+ molar percentage of 1% were grown by an improved Bridgman method.Compared with the Ho3+ single-doped Na YF4 crystal,an obviously enhanced emission band at 2.85 μm is observed under 640 nm excitation.The Judd-Ofelt strength parameters(?2,?4 and ?6) are calculated,the radiative transition probabilities(A),the fluorescence branching ratio...
【文章頁數(shù)】：5 頁
本文編號：3999931
【文章頁數(shù)】：5 頁
本文編號：3999931
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