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Proceedings Paper

Heavy Metal Fluoride Glasses. New Developments
Author(s): Jacques Lucas; Denis Tregoat; Ahmed El Houari; Gilles Fonteneau
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Paper Abstract

Heavy metal fluoride glasses (HMFG) based on ThF4, which exhibits a large transparency domain from 0.2 pm to 8 pm, have been optimized in three directions. The devitrification tendency has been decreased by using InF3 as doping while maintaining the I.R. transparency in the 8 pm region. Purification by a RAP technique using CS2 has been applied to eliminate hydroxyle and oxygen contamination. The corrosion of HMFG by atmospheric moisture during the melting and annealing operations has been investigated.

Paper Details

Date Published: 16 October 1984
PDF: 5 pages
Proc. SPIE 0484, Infrared Optical Materials and Fibers III, (16 October 1984); doi: 10.1117/12.943140
Show Author Affiliations
Jacques Lucas, Universite de Rennes (France)
Denis Tregoat, Universite de Rennes (France)
Ahmed El Houari, Universite de Rennes (France)
Gilles Fonteneau, Universite de Rennes (France)


Published in SPIE Proceedings Vol. 0484:
Infrared Optical Materials and Fibers III
Paul Klocek, Editor(s)

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