Curling Colloidal Photonic Crystals


  • V. V. K. gratefully acknowledges the support of the Wilfrid Laurier University. E. V. and G. A. O. thank NSERC for the financial support. G. A. O. is a Government of Canada Research Chair. The authors thank Georg von Freymann for supplying the SWA code. Supporting Information is available online from Wiley InterScience or from the author.


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Photonic crystals with tunable curvature based on inverse opals are demonstrated (see figure and inside cover). The curvature is tuned through the controlled formation and hydrolysis of an overlayer upon infiltration of templated colloidal crystals using sol–gel precursors. The optical properties of individual curved inverse zirconia opal microstructures are studied by means of micro-optical spectroscopy.