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Proceedings Paper

Evaluation of chalcogenide glasses for multispectral imaging in the visible, SWIR and LWIR spectral regions
Author(s): A. Bréhault; L. Calvez; T. Pain; H. L. Ma; D. Bigou; M. Duchêne; P. Adam; J. Rollin; X. H. Zhang
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Paper Abstract

In this paper, a first part will present the mechanical properties of the chalcohalide glass system GeS2-Ga2S3-CsCl. The hardness, Young’s modulus, shear modulus and toughness of a series of glasses (0.8 GeS2 - 0.2 Ga2S3)100-x CsClx with x = 0, 5, 10, 15 have been investigated and compared with other glasses. Two particular compositions 75 GeS2 - 15 Ga2S3 - 10 CsCl and 65 GeS2 - 20 Ga2S3 - 15 CsCl are compared with existing industrial chalcogenide glasses. In a second part, two multispectral antireflective coatings are presented. These coatings, developed for a multispectral application, enhanced the transmissions in specific bands.

Paper Details

Date Published: 17 May 2016
PDF: 11 pages
Proc. SPIE 9822, Advanced Optics for Defense Applications: UV through LWIR, 982202 (17 May 2016); doi: 10.1117/12.2222900
Show Author Affiliations
A. Bréhault, Lab. Verres et Céramiques, Institut des Sciences Chimiques de Rennes, Univ. de Rennes 1, CNRS (France)
L. Calvez, Lab. Verres et Céramiques, Institut des Sciences Chimiques de Rennes, Univ. de Rennes 1, CNRS (France)
T. Pain, Lab. Verres et Céramiques, Institut des Sciences Chimiques de Rennes, Univ. de Rennes 1, CNRS (France)
H. L. Ma, Lab. Verres et Céramiques, Institut des Sciences Chimiques de Rennes, Univ. de Rennes 1, CNRS (France)
D. Bigou, Thales Angénieux S.A. (France)
M. Duchêne, Thales Angénieux S.A. (France)
P. Adam, Délégation Générale pour l'Armement (France)
J. Rollin, Thales Angénieux S.A. (France)
X. H. Zhang, Lab. Verres et Céramiques, Institut des Sciences Chimiques de Rennes, Univ. de Rennes 1, CNRS (France)


Published in SPIE Proceedings Vol. 9822:
Advanced Optics for Defense Applications: UV through LWIR
Jay N. Vizgaitis; Bjørn F. Andresen; Peter L. Marasco; Jasbinder S. Sanghera; Miguel P. Snyder, Editor(s)

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