Article ID Journal Published Year Pages File Type
1484379 Journal of Non-Crystalline Solids 2005 5 Pages PDF
Abstract

The photoinscription of standard telecommunications glass materials by femtosecond radiation is shown to induce significant mesoscopic structure. The scattering intensity for irradiated glasses is close to two orders of magnitude greater than that of unexposed material. Anomalous small-angle X-ray scattering (ASAXS) around the germanium K-edge for the silica and germanium doped silica regions of a fibre preform is used to demonstrate that identical structures are induced in both glass materials, with germanium displaying a capacity to isomorphically replace silicon in the case of the germanium doped silica. Analysis of measured scattering indicates that photo-inscribed features are produced at two distinct scales with typical radii of R ≈ 20 Å and Rmin ≈ 200 Å.

Related Topics
Physical Sciences and Engineering Materials Science Ceramics and Composites
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