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首页> 外文期刊>Physica Scripta: An International Journal for Experimental and Theoretical Physics >Concentration dependence of the Judd-Ofelt parameters of Er3+ ions in CaF2 crystals
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Concentration dependence of the Judd-Ofelt parameters of Er3+ ions in CaF2 crystals

机译：CaF2晶体中Er3 +离子Judd-Ofelt参数的浓度依赖性

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摘要

In the present study, various concentrations of ErF3-doped CaF2 crystals were grown using the vertical Bridgman method. The Judd-Ofelt intensity parameters Omega(t) (t = 2, 4, 6) for f-f transitions of Er3+ ions were determined from optical absorption spectra. The concentration dependence of the intensity parameters radiative transition probability, oscillator strength, branching ratio and radiative lifetime was also investigated. The predicted radiative lifetimes were compared with those of the Er3+ transitions reported in various hosts. Apart from the green and red emissions, reported by other researchers, a UV (314 nm) emission band was observed, not reported previously.
机译：在本研究中，使用垂直Bridgman方法生长了各种浓度的掺ErF3的CaF2晶体。从光吸收光谱确定了Er3 +离子的f-f跃迁的Judd-Ofelt强度参数Omega（t）（t = 2、4、6）。还研究了强度参数对辐射跃迁几率，振子强度，分支比和辐射寿命的浓度依赖性。将预测的辐射寿命与在各种宿主中报告的Er3 +跃迁的辐射寿命进行了比较。除了其他研究人员报道的绿色和红色发射之外，还观察到了紫外（314 nm）发射带，以前没有报道过。

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