Anisotropic Resonant Scattering from Polymer Photonic Crystals

Andrew I. Haines*, Christopher Edward Finlayson, David R. E. Snoswell, Peter Spahn, G. Peter Hellmann, Jeremy J. Baumberg

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

17 Citations (SciVal)

Abstract

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.

Original languageEnglish
Pages (from-to)OP305-OP308
Number of pages4
JournalAdvanced Materials
Volume24
Issue number44
Early online date23 Aug 2012
DOIs
Publication statusPublished - 20 Nov 2012

Keywords

  • LOCALIZATION
  • OPTICAL-PROPERTIES
  • OPALS
  • STRUCTURAL COLOR

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