Journal
OPTICS EXPRESS
Volume 16, Issue 3, Pages 1440-1447Publisher
OPTICAL SOC AMER
DOI: 10.1364/OE.16.001440
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Strong scattering properties are obtained for a monolayer of randomly packed polystyrene microspheres. This gives rise to structural colors in transmission. For a sphere diameter between 0.5 and 1 micron, light is mainly scattered in the forward direction. Consequently, in-plane multiple scattering can be neglected when spheres are not too close to each others. This allows one to use a single scattering approximation to reproduce transmission spectra of the system. The film color is dependent on the sphere size, but also on the observation angle. This angular dependant color is reproduced taking into account multiple scattering between spheres. These films can be useful when low reflection is needed. (c) 2008 Optical Society of America.
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