Manufacture of composite optical materials

A polymer opal material comprises a three dimensionally periodic arrangement of core particles in a matrix material and exhibits structural color via Bragg reflection. IN a process for manufacturing such a material, a sandwich structure is provided, of a precursor composite material held between fir...

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Bibliographische Detailangaben
Hauptverfasser: Schafer Christian Gerhard, Snoswell David, Zhao Qibin, Baumberg Jeremy John, Spahn Peter Wolfgang Andreas, Hellmann Gotz Peter, Finlayson Christopher
Format: Patent
Sprache:eng
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Zusammenfassung:A polymer opal material comprises a three dimensionally periodic arrangement of core particles in a matrix material and exhibits structural color via Bragg reflection. IN a process for manufacturing such a material, a sandwich structure is provided, of a precursor composite material held between first and second sandwiching layers. A relative shear strain of at least 10% is imposed on the precursor composite material by curling the sandwich structure around a roller. The shear strain is cycled, in order to promote the formation of the three dimensional periodic arrangement.