Site-selective spectroscopy of Ce³⁺ and Yb³⁺ ions in double-doped SrAlF₅ crystals

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• 作者：A.N. Yunusova ; V.V. Semashko ; G.M. Safiullin ; L.A. Nurtdinova ; V.V. Pavlov ; M.A. Marisov
• 关键词：Laser spectroscopy ; Lasing ; Color centers ; Rare-earth ions ; UV active media ; Fluoride crystals
• 刊名：Journal of Luminescence
• 出版年：January, 2014
• 年：2014
• 卷：145
• 期：Complete
• 页码：443-447
• 全文大小：1006 K

文摘

This paper reports a study of absorption, luminescence and excitation spectra of single- and double-doped Ce³⁺,Yb³⁺:SrAlF₅ (0.5 at%.) single crystals. Spectral properties of different types of impurity centers of Ce³⁺, Yb³⁺ and Yb²⁺ ions are described. Experimental energy level diagrams for optically nonequivalent Ce³⁺, Yb²⁺ and Yb³⁺ centers in double-doped Ce³⁺, Yb³⁺: SrAlF₅ single crystals are suggested. Lasing on Ce:SAF single crystal at 290 nm under 248 nm pumping was demonstrated for the first time.