Abstract
To validate the reliability of Judd-Ofelt results and the influence of involving absorption transition number, the Judd-Ofelt calculations, in which various transitions were adopted, were carried out for Tm3+ doped LiYF4 single crystal. It was found that introducing more transitions into the calculation procedure might get more reliable results. In order to clarify the feasibility of temperature self-reading in Tm3+/Yb3+ doped LiYF4 single crystal during laser operation, the temperature sensing properties of the single crystal were studied. It was found that the fluorescence intensity ratio of 3F2+3F3→3H6 to 3H4→3H6 can be used for achieving better temperature detection, and the temperature sensitivity was found much better than that in other materials.
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