Simple optical characterization of new high index chalcogenide glass

Thomas Hingant; Pol Briantais; Raphaël Proux; Mathieu Rozé; Petr Němec; Antoine Bréhaut; Laurent Calvez; Xiang-Hua Zhang; Yann Guimond; John W. Franks

doi:10.1117/12.2586076

12 April 2021 Simple optical characterization of new high index chalcogenide glass

Thomas Hingant, Pol Briantais, Raphaël Proux, Mathieu Rozé, Petr Němec, Antoine Bréhaut, Laurent Calvez, Xiang-Hua Zhang, Yann Guimond, John W. Franks

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Proceedings Volume 11737, Advanced Optics for Imaging Applications: UV through LWIR VI; 1173702 (2021) https://doi.org/10.1117/12.2586076
Event: SPIE Defense + Commercial Sensing, 2021, Online Only

Abstract

In this paper we present techniques for measuring efficiently the optical properties of chalcogenide glasses. In particular we discuss methods for measuring refractive index and the variation of refractive index with temperature. We then apply these techniques to a new glass composition and demonstrate a high index of 3.26 @10 μm and a large thermo-optic coefficient of 1.99 ⋅ 10⁻⁴ K⁻¹. These properties make this glass a good candidate for replacing germanium.

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Thomas Hingant, Pol Briantais, Raphaël Proux, Mathieu Rozé, Petr Němec, Antoine Bréhaut, Laurent Calvez, Xiang-Hua Zhang, Yann Guimond, and John W. Franks "Simple optical characterization of new high index chalcogenide glass", Proc. SPIE 11737, Advanced Optics for Imaging Applications: UV through LWIR VI, 1173702 (12 April 2021); https://doi.org/10.1117/12.2586076

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