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Andrew I. Haines, Chris E. Finlayson, David R. E. Snoswell, Peter Spahn, G. Peter Hellmann and Jeremy J. Baumberg Anisotropic Resonant Scattering from Polymer Photonic Crystals Advanced Materials 24

Version of Record online: 23 AUG 2012 | DOI: 10.1002/adma.201202169

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Hyperspectral goniometry reveals anisotropic scattering which dominates the visual appearance of self-assembled polymer opals. The technique allows reconstruction of the reciprocal-space of nanostructures, and indicates that chain defects formed during shear-ordering are responsible for the anisotropy in these samples. Enhanced scattering with improving order is shown to arise from increased effective refractive index contrast, while broadband background scatter is suppressed by absorptive dopants.

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