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Proceedings Paper

Experimental demonstration of light bending effect at optical wavelengths in a non-homogenizable graded photonic crystal
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Paper Abstract

Experimental results on light bending effect in a non-homogenizable graded photonic crystals operating at optical wavelengths are presented. A square lattice photonic crystal made with a two-dimensional chirp of the air-hole filling factor is exploited to produce this bending effect in a near bandgap frequency range. Experimental results are in good agreement with the prediction that had been performed using the equations of Hamiltonian optics and Finite-Difference Time-Domain simulations. This experimental demonstration performed in one particular configuration opens opportunities for light manipulation using a combination of unusual dispersive phenomena in PhCs and additional degrees of freedom brought by a generalized two-dimensional chirp of PhCs lattice parameters. This approach is also an alternative solution to the use of photonic metamaterials combining dielectric and metallic materials with sub-wavelength unit cells.

Paper Details

Date Published: 25 April 2012
PDF: 6 pages
Proc. SPIE 8425, Photonic Crystal Materials and Devices X, 84250Y (25 April 2012); doi: 10.1117/12.921981
Show Author Affiliations
Khanh Van Do, Institut d'Electrique Fondamentale, Univ. Paris Sud, CNRS (France)
Xavier Le Roux, Institut d'Electrique Fondamentale, Univ. Paris Sud, CNRS (France)
Delphine Marris-Morini, Institut d'Electrique Fondamentale, Univ. Paris Sud, CNRS (France)
Laurent Vivien, Institut d'Electrique Fondamentale, Univ. Paris Sud, CNRS (France)
Eric Cassan, Institut d'Electrique Fondamentale, Univ. Paris Sud, CNRS (France)


Published in SPIE Proceedings Vol. 8425:
Photonic Crystal Materials and Devices X
Hernán Ruy Míguez; Sergei G. Romanov; Lucio Claudio Andreani; Christian Seassal, Editor(s)

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