Browsing Materials Research by Author "Baumberg, Jeremy J."

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  • 3D Bulk Ordering in Macroscopic Solid Opaline Films by Edge-Induced Rotational Shearing 
    Finlayson, Christopher Edward; Spahn, Peter; Snoswell, David R. E.; Yates, Gabrielle; Kontogeorgos, Andreas; Haines, Andrew I.; Hellmann, G. Peter; Baumberg, Jeremy J. (2011-02-22)
    A breakthrough in the field of large area photonic structures is reported, based on permanent ordering of solid polymeric films of sub-micrometer spheres by edge rotational-shearing. The resulting high-quality polymer opal ...
  • Anisotropic Resonant Scattering from Polymer Photonic Crystals 
    Haines, Andrew I.; Finlayson, Christopher Edward; Snoswell, David R. E.; Spahn, Peter; Hellmann, G. Peter; Baumberg, Jeremy J. (2012-11-20)
    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 ...
  • Electrically conductive polymeric photonic crystals 
    Imai, Yusuke; Finlayson, Christopher Edward; Goldberg-Oppenheimer, P; Zhao, Qibin; Spahn, Peter; Snoswell, David R. E.; Haines, Andrew I.; Hellmann, G. Peter; Baumberg, Jeremy J. (2012)
    Electrically conductive polymeric 3D photonic crystals are prepared by the shear ordering of composites consisting of monodisperse core-shell polymer spheres and single-walled carbon nanotubes (SWNTs). Strong iridescent ...
  • Inducing Symmetry Breaking in Nanostructures: Anisotropic Stretch-Tuning Photonic Crystals 
    Kontogeorgos, Andreas; Snoswell, David R. E.; Finlayson, Christopher Edward; Baumberg, Jeremy J.; Spahn, Peter; Hellmann, G. Peter (2010-12-03)
    We use elastically induced phase transitions to break the structural symmetry of self-assembled nanostructures, producing significantly modified functional properties. Stretching ordered polymer opals in different directions ...
  • Interplay of index contrast with periodicity in polymer photonic crystals 
    Finlayson, Christopher Edward; Haines, Andrew I.; Snoswell, David R. E.; Kontogeorgos, Andreas; Vignolini, Silvia; Baumberg, Jeremy J.; Spahn, Peter; Hellmann, G. Peter (2011)
    We report how the strength of resonant Bragg reflection from polymeric photonic crystals (polymer opals) varies linearly with the refractive-index contrast, Δn, in contrast to the quadratic buildup of Fresnel reflections ...
  • Ordering in stretch-tunable polymeric opal fibers 
    Finlayson, Christopher Edward; Goddard, Chris; Papachristodoulou, Elpida; Snoswell, David R. E.; Kontogeorgos, Andreas; Spahn, Peter; Hellmann, G. Peter; Hess, Ortwin; Baumberg, Jeremy J. (2011)
    We demonstrate the production of high-quality polymer opal fibers in an industrially-scalable process. These fibers exhibit structural color, based on the self-assembly of sub-micron core-shell particles, with a spectrum ...
  • Stretching polymer opal fibers tunes structural color 
    Finlayson, Christopher Edward; Snoswell, David R. E.; Spahn, Peter; Baumberg, Jeremy J. (2011-06)
    Polymer opal photonic-crystal fibers containing self-assembled submicron core-shell particles exhibit stretch-tunable color. These mechanically robust fibers can be produced in an industrially scalable extrusion process.

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