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Optique non linéaire dans les cristaux photoniques en semiconducteurs III-V

Abstract : This work concerns both theoretical and experimental studies of nonlinear optics in photonic crystals based on III-V semiconductors. Photonic crystals, with their lattice dimensions of the order of the wavelength of the light, offer efficient ways to control the propagation of the electromagnetic fields. For instance, by adjusting the opto-geometrical parameters of these structures, it is possible to engineer the dispersion of the matter such as the light propagation is forbidden in every directions of the space. The aim of this PhD thesis is to demonstrate that this possibility to engineer the dispersion can also be advantageously used to enhance nonlinear interactions between light and matter. We will see that 1D and 2D photonic crystals are adequate structures to obtain efficient frequency doubling because they enable phase matching in very nonlinear materials such as AlxGa1-xAs and the slowing down of the light as well. We will also show that, by combining the nonlinear properties of III-V semiconductors to 2D photonic crystals, it is possible to realize the basic active functionalities for all-optical data processing such as laser sources, amplification, ultrafast switching...
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Contributor : Fabrice Raineri <>
Submitted on : Friday, May 6, 2005 - 5:13:22 PM
Last modification on : Wednesday, December 9, 2020 - 3:10:40 PM
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Fabrice Raineri. Optique non linéaire dans les cristaux photoniques en semiconducteurs III-V. Physique [physics]. Université Paris Sud - Paris XI, 2004. Français. ⟨tel-00009192⟩

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