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Proceedings Paper

Tellurium Halide Glasses, New Materials For I.R. Fibers
Author(s): Jacques Lucas; Xiang Hua Zhang; Gilles Fonteneau
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Paper Abstract

A new class of I.R. transmitting glasses have been discovered in the binary systems Te-Cl and Te-Br and in the ternary systems Te-Cl-S, Te-Cl-Se, Te-Br-S, Te-Br-Se, Te-I-Se. The ternary glasses have a very high resistance towards devitrification. The glass temperature Tg is ranging from 50 to 80° C depending on the composition. The S or Cl containing glasses have their I.R. edge located in the 13 pm region while the compositions not containing those light elements have their multiphonon edge near 20 μm. A typical glass composition such as Te3Br2Se has a potential high transparency of about 10 dB/km at 10.6 μm estimated from band-gap and multiphonon absorption. Samples prepared from high purity compounds show no parasitic absorption bands due to OH, SH, and so on.

Paper Details

Date Published: 1 January 1987
PDF: 4 pages
Proc. SPIE 0843, Infrared Optical Materials and Fibers V, (1 January 1987); doi: 10.1117/12.968206
Show Author Affiliations
Jacques Lucas, Universite de Rennes-Beaulieu (France)
Xiang Hua Zhang, Universite de Rennes-Beaulieu (France)
Gilles Fonteneau, Universite de Rennes-Beaulieu (France)

Published in SPIE Proceedings Vol. 0843:
Infrared Optical Materials and Fibers V
Paul Klocek, Editor(s)

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