Light Scattering in a Surface Glass Layer Produced by a Surface Ion Exchange Process and Coated with Thin Gold Layers
Glass Technology: European Journal of Glass Science and Technology Part A
Institute of Solid State Chemistry and Mechanochemistry, St. Kutateladze, 18
Khristianovich Institute of Theoretical and Applied Mechanics, St. Institutskaja, 4/1, Novosibirsk, 630090
Boreskov Institute of Catalysis, Prosp. Lavrentjeva, 5
The morphology and optical properties of a glass surface treated by a surface ion exchange process and coated with a thin surface gold layer are investigated. It was found by SEM that the modified surface layer consists of a system of microblocks and microcracks. In addition the thin gold layer consists of nanosized hemispherical gold nucleation centres of volume growth (diameters ∼100 – 500 nm), three-dimensional gold aggregates and pendant “cornice”. The investigated optical properties (light scattering, depolarization, light loss characteristics and effectiveness of light propagation) differ significantly from the analogous optical data previously reported for glass surface modified by the same surface ion exchange process but lacking the thin gold layer. The results are also compared with results obtained from a chemically etched glass surface. The obtained data may be important and useful in glass illumination engineering, light decoration and others fields.