Abstract
We report the vacuum ultraviolet (VUV) spectroscopy of APLF+Nd and APLF+Er glass, with composition 20Al(PO3)3-80LiF+1NdF3 and+1ErF3 (in mol%). APLF+Nd and APLF+Er have a dominant fluorescence peak at 185nm and 168nm with decay times of 4.5ns and 5.8ns, respectively. Fluorescence from APLF+Nd is attributed to 4f25d→4f3 transitions in neodymium (Nd) while fluorescence from APLF+Er is due to spin allowed transition in erbium (Er). This is the first report of VUV fluorescence from rare earth ions doped in glass hosts, which could provide the basis for mass production of VUV emitting materials. Our results also suggest the potential of using APLF+Nd and APLF+Er as neutron scintillators during inertial confinement fusion.
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