Some properties of single Crystal Lanthanum Trifluoride

Single crystal lanthanum fluoride transmits light from the vacuum ultraviolet into the infrared, with its transmission reduced to about 20 per cent at 0.13 and 13 μ respectively for 0.5 mm thick samples. In addition to its broad transmission, single crystal lanthanum fluoride exhibits a high degree...

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Bibliographic Details
Published in:Infrared physics 1966-01, Vol.6 (3), p.153-157
Main Author: Mooney, J.B.
Format: Article
Language:English
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Summary:Single crystal lanthanum fluoride transmits light from the vacuum ultraviolet into the infrared, with its transmission reduced to about 20 per cent at 0.13 and 13 μ respectively for 0.5 mm thick samples. In addition to its broad transmission, single crystal lanthanum fluoride exhibits a high degree of chemical, thermal, and radiation stability. A number of physical properties are discussed, including thermal conductivity, thermal expansion, dielectric constant, and the absorption coefficient in the i.r. cut-off region. The effects of environmental conditions on the i.r. spectrum have also been determined. Those discussed are: immersion in aqueous solutions of salt, base, and acid at 100°C; heating in air up to 600°C; and irradiation with 40 Mrad of 6.5 MeV electrons.
ISSN:0020-0891
DOI:10.1016/0020-0891(66)90009-1