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首页> 外文期刊>The Journal of Chemical Physics >EXCITED STATE ABSORPTION AND FLUORESCENCE IN NARROWING STUDIES OF CM3+ IN LUPO4
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EXCITED STATE ABSORPTION AND FLUORESCENCE IN NARROWING STUDIES OF CM3+ IN LUPO4

机译：LUPO4中CM3 +的钉扎研究中的激发态吸收和荧光

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摘要

Laser selective excitation, fluorescence line narrowing, and excited state absorption techniques have been used to investigate the electronic-energy-level structure of the 5f(7) ion Cm3+ in the host crystal LuPO4. Crystal-field levels have been determined up to 35 700 cm(-1) for the principal D-2d symmetry site, Eighty levels have been assigned and fitted to a parametric Hamiltonian with an rms deviation of 28.4 cm(-1). Inhomogeneous broadening of the electronic transitions and the small 9.5 cm(-1) splitting of the nominally S-8(7/2) ground multiplet are responsible for satellite lines reported previously. Time resolved fluorescence line narrowing was used to observe energy transfer between different subsites of the intrinsic Cm3+ center. It was found that electric-dipole interactions mediate this energy transfer. (C) 1996 American Institute of Physics. [References: 12]
机译：激光选择性激发，荧光线变窄和激发态吸收技术已被用于研究主体晶体LuPO4中5f（7）离子Cm3 +的电子能级结构。对于主要的D-2d对称位点，已确定了高达35 700 cm（-1）的晶体场能级，分配了80个能级并拟合到均方根误差为28.4 cm（-1）的参数哈密顿量。电子过渡的不均匀展宽和名义上为S-8（7/2）的多重多重峰的小9.5 cm（-1）分裂是造成先前报道的卫星线路的原因。时间分辨荧光线变窄用于观察固有Cm3 +中心不同子位之间的能量转移。发现电偶极相互作用介导了这种能量转移。 （C）1996年美国物理研究所。 [参考：12]

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