Judd-Ofelt analysis of spectroscopic properties of Sm³⁺ ions in K₂YF₅ crystal

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• 作者：Phan Van Do^a ; Vu Phi Tuyen^b ; Vu Xuan Quang^b ; Nguyen Trong Thanh^b ; Vu Thi Thai Ha^b ; Nicholas M. Khaidukov^c ; Yong-Ill Lee^d ; B.T. Huy^d ; ^{buithehuy.nt@gmail.com}
• 关键词：Rare earth alloys and compounds ; Crystal growth ; Crystal and ligand fields ; Optical spectroscopy
• 刊名：Journal of Alloys and Compounds
• 出版年：2012
• 期刊代码：45_09258388
• 类别：ms
• 出版时间：15 April, 2012
• 卷：520
• 期：Complete
• 页码：262-265
• 文件大小：350 K

摘要

K₂YF₅ crystals doped Sm³⁺ ions were synthesized under hydrothermal condition. The absorption, luminescence spectra, and lifetimes of K₂YF₅:Sm³⁺ were measured at room temperature. The results were analyzed using Judd-Ofelt (JO) theory giving the values of three 惟₂, 惟₄, and 惟₆ intensity parameters. Using these JO parameters as well as from the emission, various radiative parameters such as transition probabilities (A_R), radiative lifetime (喂_R), calculated branching ratios (尾_R), measured branching ratios (尾_mes), and stimulated emission cross-sections (蟽_位p) have been calculated for ⁴G_5/2 excited level.