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Proceedings Paper

Controllable far-infrared-transmitting glass ceramics based on chalcogenide and halide
Author(s): Xianghua Zhang; Hongli Ma; Jacques Lucas
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Paper Abstract

New infrared transmitting glass ceramics based on the Ge-Sb-S-CsCl system have been studied. By selecting an appropriate glass composition, glass ceramics with different quantities of micro-crystals can be reproducibly obtained with different annealing temperatures and durations. The presence of crystals induces some additional losses in the short wavelength region, namely between 0.6 and 2 μm. However, the glass ceramics keep the same transmission as the original glass after 3 μm up to 11 μm. To our best knowledge, it is the first time that highly reproducible glass-ceramics based on chalcogenide glasses are obtained. Compared to the glass, the corresponding glass-ceramics show better resistance to fracture propagation. The feasibility of shaping the glass-ceramics by molding has also been demonstrated.

Paper Details

Date Published: 14 June 2004
PDF: 9 pages
Proc. SPIE 5350, Optical Components and Materials, (14 June 2004); doi: 10.1117/12.533136
Show Author Affiliations
Xianghua Zhang, Lab. Verres et Ceramiques, CNRS and Univ. de Rennes I (France)
Hongli Ma, Lab. Verres et Ceramiques, CNRS and Univ. de Rennes I (France)
Jacques Lucas, Lab. Verres et Ceramiques, CNRS and Univ. de Rennes I (France)

Published in SPIE Proceedings Vol. 5350:
Optical Components and Materials
Michel J. F. Digonnet; Shibin Jiang, Editor(s)

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