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Short-range order and near-field effects on optical scattering and structural coloration

We have investigated wavelength-dependent light scattering in biomimetic structures with short-range order. Coherent backscattering experiments are performed to measure the transport mean free path over a wide wavelength range. Overall scattering strength is reduced significantly due to short-range...

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Bibliographic Details
Published in:Optics express 2011-04, Vol.19 (9), p.8208-8217
Main Authors: Liew, S F, Forster, J, Noh, H, Schreck, C F, Saranathan, V, Lu, X, Yang, L, Prum, Richard O, O'Hern, C S, Dufresne, E R, Cao, H
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Language:English
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Summary:We have investigated wavelength-dependent light scattering in biomimetic structures with short-range order. Coherent backscattering experiments are performed to measure the transport mean free path over a wide wavelength range. Overall scattering strength is reduced significantly due to short-range order and near-field effects. Our analysis explains why single scattering of light is dominant over multiple scattering in similar biological structures and is responsible for color generation.
ISSN:1094-4087
1094-4087
DOI:10.1364/oe.19.008208