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Proceedings Paper

Optical mirage in graded photonic crystals
Author(s): Emmanuel Centeno; David Cassagne; Jean Paul Albert
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Paper Abstract

We present the concept of graded photonic crystals (GPC) and show its ability to enhance the control of light propagation. It is shown that gradual modifications of photonic crystal parameters are able to curve the path of light. This light bending which depends on the wavelength and on the incident angle is examined through parametric studies of the iso-frequency curves. We demonstrate that photonic mirages originate from the same physical principles as the usual atmospheric mirages. Two optical components based on two-dimensional GPCs presenting a super bending effect and a large beam shifting are presented.

Paper Details

Date Published: 18 April 2006
PDF: 7 pages
Proc. SPIE 6182, Photonic Crystal Materials and Devices III (i.e. V), 61821H (18 April 2006); doi: 10.1117/12.660917
Show Author Affiliations
Emmanuel Centeno, GES, CNRS, Univ. Montpellier II (France)
David Cassagne, GES, CNRS, Univ. Montpellier II (France)
Jean Paul Albert, GES, CNRS, Univ. Montpellier II (France)


Published in SPIE Proceedings Vol. 6182:
Photonic Crystal Materials and Devices III (i.e. V)
Richard M. De La Rue; Pierre Viktorovitch; Ceferino Lopez; Michele Midrio, Editor(s)

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