Experimental Evidence for Superprism Effects in Three-Dimensional Polymer Photonic Crystals


  • We thank Costas Soukoulis for stimulating discussions. This work was produced with the assistance of the Australian Research Council under the ARC Centres of Excellence program. CUDOS (the Centre for Ultrahigh-bandwidth Devices for Optical Systems) is an ARC Centre of Excellence. Furthermore, we would like to thank Michael Popall and Ruth Houbertz from the “Fraunhofer-Institut für Silicatforschung ISC” (Germany) for providing the Ormocer materials.


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Evidence for highly dispersive light propagation inside three-dimensional photonic crystals is presented theoretically (see Figure and inside Cover) as well as experimentally. Polymer woodpile structures having a bandgap in the near-infrared wavelength range have been fabricated by means of two-photon polymerization, and the directions of the wavelength-dependent light propagation inside the structures has been measured.