作者: Urmo Visk , A. Suisalu , J. Kikas , A. Osvet , A. Winnacker
DOI: 10.1016/J.JLUMIN.2007.02.006
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摘要: Abstract An explanation for the anomalous temperature broadening of zero-phonon transition corresponding to 7 F 0 ↔ 5 D electronic in Sm 2+ –doped sodium borate glasses is given. The main mechanism spectral diffusion induced by thermal fluctuation long-living soft localized modes over whole studied region 5–293 K.