Evaluation of chalcogenide glasses for multispectral imaging in the visible, SWIR and LWIR spectral regions

A. Bréhault; L. Calvez; T. Pain; H. L. Ma; D. Bigou; M. Duchêne; P. Adam; J. Rollin; X. H. Zhang

doi:10.1117/12.2222900

17 May 2016 Evaluation of chalcogenide glasses for multispectral imaging in the visible, SWIR and LWIR spectral regions

A. Bréhault, L. Calvez, T. Pain, H. L. Ma, D. Bigou, M. Duchêne, P. Adam, J. Rollin, X. H. Zhang

Proceedings Volume 9822, Advanced Optics for Defense Applications: UV through LWIR; 982202 (2016) https://doi.org/10.1117/12.2222900
Event: SPIE Defense + Security, 2016, Baltimore, MD, United States

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 CsCl_x 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.

Citation Download Citation

A. Bréhault, L. Calvez, T. Pain, H. L. Ma, D. Bigou, M. Duchêne, P. Adam, J. Rollin, and X. H. Zhang "Evaluation of chalcogenide glasses for multispectral imaging in the visible, SWIR and LWIR spectral regions", Proc. SPIE 9822, Advanced Optics for Defense Applications: UV through LWIR, 982202 (17 May 2016); https://doi.org/10.1117/12.2222900

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