Concentration Dependence Study of VUV-UV-Visible Luminescence of Ndand Gd in LuLiF4
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چکیده
An overview of absorption and luminescence characteristics of Nd and Gd centers in a LiLuF4 single crystal host is provided. Single crystals doped with the above rare earth ions were prepared by micro-pulling-down technique in the form of rods a few cm long with a diameter of about 2 mm. Excitation and emission spectra and fast decay kinetics in VUV and UV spectral regions were measured at room temperature. The observed absorption and emission peaks are due to the 5d-4f and 4f-4f optical transitions of Nd and Gd centers. Concentration dependence of the decay kinetics is also discussed.
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تاریخ انتشار 2012