Journal
PLASMA PROCESSES AND POLYMERS
Volume 6, Issue -, Pages S746-S750Publisher
WILEY-V C H VERLAG GMBH
DOI: 10.1002/ppap.200931801
Keywords
magnetron; multilayers; optical coatings; optical properties; sputtering
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Periodic dielectric multilayer structures can generate interferential colours from optically transparent basic materials. Their iridescence property, i.e. the change of colour with the illumination or viewing angle, is exploited in the industry to produce structurally coloured coatings and paints. Magnetron sputtering is an efficient technique for producing multilayer films owing to its ability to deposit films on large surfaces with excellent uniformity and reproducibility in both the film thickness and composition. Based on a theoretical model of the optical response, we investigated the iridescence tuning range of the technologically important SiO(2)/TiO(2) material system. Radically different iridescent behaviours were predicted theoretically and demonstrated experimentally by selecting appropriate combinations of period and layer thickness ratio.
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