Electronic Spectra and Energy Levels Analysis of Ho3+ in Cs2NaYF6
ZHOU Xian-ju1, REN Chong-dan1, LUO Bin1，FENG Qiao-chun2
1. College of Mathematics and Physics, Chongqing University of Posts and Telecommunication，Chongqing 400065, China 2. Chongqing Yapai Bridge Engineering Quality Testing Co. Ltd., Chongqing 400065, China
Abstract：The electronic spectra and energy levels of Ho3+ in Cs2NaYF6 were studied on basis of rare earth (RE) spectrum, quantum mechanics and crystal field theory. Detailed analysis on electronic absorption spectra at temperatures down to 10 K in the range of 4 600-24 000 cm-1 was carried out. The transitions, with zero phonon lines (ZPL) and abundant vibronic sidebands, from ground states to different excited states such as 5IJ(J=7,6,5,4),5FS(S=5,4,3),5GP(P=6,5)and3K8 were clearly observed. All the transitions have been assigned and 50 experimental crystal field levels have been obtained. The dataset has been investigated by standard f-shell program, which gave out the calculated energy levels and the corresponding empirical Hamiltonian parameters. The comparison of the energy levels and Hamiltonian parameters was made with that of Cs2NaYCl6∶Ho3+ as well.
Key words：Cs2NaYF6∶Ho3+;Electronic spectra;Energy levels;Crystal field analysis
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