Abstract:Glasses used in photonics research and industry are required to be homogeneous and stable. Our study of chalcogenide microspheres indicates that significant deterioration can take place at the surface of such micro-optics in a few years at normal environmental conditions. Chalcogenide glass (Ga2S3:La2S3, 70:30 (GLS)) microspheres of order one hundred microns in diameter have been focused ion beam (FIB) milled and imaged to show material and morphological changes at the surface. Such microspheres are used as wh… Show more
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