In-depth study of the pseudogap in artificial opals

Juan Francisco Galisteo-Lopez; Cefe Lopez

doi:10.1117/12.544951

15 September 2004 In-depth study of the pseudogap in artificial opals

Juan Francisco Galisteo-Lopez, Cefe Lopez

Proceedings Volume 5450, Photonic Crystal Materials and Nanostructures; (2004) https://doi.org/10.1117/12.544951
Event: Photonics Europe, 2004, Strasbourg, France

Abstract

In this work we present optical and structural characterisation of high-quality opal based photonic crystals consisting of polystyrene spheres ordered into a FCC lattice. By means of optical diffraction we orient our samples so that the evolution of its spectral features in reflectivity experiments may be probed along desired directions in reciprocal space. Prior to a comparison with calculated bands, finite size effects in the optical properties of the samples are taken into account. Further, attention is paid to the appearance of spectral features for energies above those where the characteristic Bragg peak is found.

Citation Download Citation

Juan Francisco Galisteo-Lopez and Cefe Lopez "In-depth study of the pseudogap in artificial opals", Proc. SPIE 5450, Photonic Crystal Materials and Nanostructures, (15 September 2004); https://doi.org/10.1117/12.544951

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