Growth and some properties of Ce3+-doped LiYbF4 single crystals

Autor:	S. P. Chernov, B. P. Sobolev, Denis N. Karimov, E. A. Krivandina, V. A. Bezhanov, O. N. Komar’kova
Rok vydání:	2010
Předmět:	Range (particle radiation) Materials science Doping Analytical chemistry General Chemistry Directed crystallization Condensed Matter Physics Indentation hardness Optical quality Ion Crystallography Absorption band General Materials Science Refractive index dispersion
Zdroj:	Crystallography Reports. 55:324-327
ISSN:	1562-689X 1063-7745
DOI:	10.1134/s1063774510020276
Popis:	LiYbF4 single crystals, nominally pure and doped with Ce3+ ions, of optical quality and up to 60 mm in diameter, have been grown by vertical directed crystallization. The optical and mechanical properties of the crystals have been studied. The refractive index dispersion for LiYbF4 in the range of 0.4–0.6 μm can be described by the dependence n2(λ) − 1 = Aλ2/(λ2 − λ02), where A = 1.14 and 1.21 and λ0 = 0.074 and 0.080 μm for no and ne, respectively. The sample microhardness exceeds 2.6 GPa. LiYbF4 crystals are transparent in the range of 0.17–9 μm and have an absorption band in the range of 0.9–1.2 μm. It is shown that LiYbF4 crystals doped with Ce3+ ions can be used as optical cut-off UV filters in the operating range λ = 0.25−0.28 μm.
Databáze:	OpenAIRE
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