| BaFCl:Sm2+ has attracted much attention in frequency-domain optical storage for its photon-gated spectral hole burning properties. However, BaFCl:Sm2+ powder can not meet the demand of optical application, large size BaFCl:Sm2+ single crystal is difficult to grow, while the homogeneous line width in glass is much broader than that in crystal. The transparent glass ceramics materials have overcome these shortcomings. To improve the performance of BaFCl:Sm2+,we successfully prepared BaFCl:Sm2+ transparent glass ceramics and mainly analyzed the spectra.BaFCl:Sm2+ transparent glass ceramics were prepared by high temperature solid state reaction method. The raw materials were heated to 1150℃for 2h, in the conditions of reducing atmosphere. By XRD, SEM and other measurements, we found that BaFCl:Sm2+ microcrystallines have been formed in the oxide glass. BaF (Cl0.5Br0.5): Sm2+ and BaFCl:Sm2+ powder samples were also prepared. We found the BaF(Cl0.5Br0.5):Sm2+ have the same crystal structure with BaFCl:Sm2+.Br ions partially replaced Cl ions.Emission and excitation spectra were analyzed in this article. Relative to the powder material, the emission lines of Sm3+ in transparent glass ceramics are broadened and Sm2+ emission spectrum not broadened. These results suggest that (1) the emission line width of Sm3+ in the oxide glass state is mainly caused by its inhomogeneous broadening which is determined by the amorphous local environment; and (2) the amount of Sm3+ ions in glass is higher than in microcrystallines, while the amount of Sm2+ ions in glass is lower than in microcrystallines. Maybe it is because Sm ions in microcrystalline are easy to be induced, while Sm ions in glass is difficult to be induced. We found that there is a peak at 696nm,it may be due to 5D0-7F1 line splitting in crystal.
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