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Temperature and selective excitation properties of the spectra for Yb:FAP and Yb:C3S2-FAP crystals
Author(s): 
Pages: 1524-1528
Year: Issue:  5
Journal: ACTA PHYSICA SINICA

Keyword:  Yb:FAP晶体Yb:C3S2-FAP晶体光谱特性选择激发;
Abstract: @@报导了Yb:FAP和Yb:C3S2-FAP晶体在不同温度下的吸收光谱和荧光光谱实验结果,研究发现由于电子-声子近共振耦合作用,Yb:FAP和Yb:C3S2-FAP晶体均存在有明显的振动谱,Yb:FAP晶体的零声子线在低温下还劈裂为相差10cm-1的两条线.采用激光选择激发技术研究了YB3+离子在FAP和C3S2-FAP晶体中的格位特征,结果表明YB3+离子在这两种基质中都只占据Ca(Ⅱ)格位,但由于CaF2的挥发,导致了Ca(Ⅱ)格位的局部畸变.
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