Time resolved nonlinear spectroscopy at the band edge of 1D photonic crystals
| Autor: | Magali Astic, Nadia Belabas, Philippe Delaye, Régis André, Isabelle Sagnes, Rama Raj, Gérald Roosen, Robert Frey |
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| Přispěvatelé: | Laboratoire Charles Fabry de l'Institut d'Optique / Manolia, Laboratoire Charles Fabry de l'Institut d'Optique (LCFIO), Centre National de la Recherche Scientifique (CNRS)-Institut d'Optique Graduate School (IOGS)-Université Paris-Sud - Paris 11 (UP11)-Centre National de la Recherche Scientifique (CNRS)-Institut d'Optique Graduate School (IOGS)-Université Paris-Sud - Paris 11 (UP11), Nanophysique et Semiconducteurs (NPSC), Institut Néel (NEEL), Université Joseph Fourier - Grenoble 1 (UJF)-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Centre National de la Recherche Scientifique (CNRS)-Université Joseph Fourier - Grenoble 1 (UJF)-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Centre National de la Recherche Scientifique (CNRS), Laboratoire de photonique et de nanostructures (LPN), Centre National de la Recherche Scientifique (CNRS), ACI Nanosciences, Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Centre National de la Recherche Scientifique (CNRS)-Université Joseph Fourier - Grenoble 1 (UJF)-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Centre National de la Recherche Scientifique (CNRS)-Université Joseph Fourier - Grenoble 1 (UJF) |
| Jazyk: | angličtina |
| Rok vydání: | 2008 |
| Předmět: |
Acoustics and Ultrasonics
Physics::Optics Nonlinear spectroscopy Edge (geometry) 01 natural sciences 010309 optics Optics 0103 physical sciences 010306 general physics Photonic crystal Signal processing [PHYS.PHYS.PHYS-OPTICS]Physics [physics]/Physics [physics]/Optics [physics.optics] Chemistry business.industry nonlinear optics Nonlinear optics Condensed Matter Physics Free carrier Surfaces Coatings and Films Electronic Optical and Magnetic Materials Intensity (physics) three photon absorption photonic crystals sense organs business Refractive index |
| Zdroj: | Journal of Physics D: Applied Physics Journal of Physics D: Applied Physics, IOP Publishing, 2008, 41 (22), pp.224005. ⟨10.1088/0022-3727/41/22/224005⟩ |
| ISSN: | 0022-3727 1361-6463 |
| DOI: | 10.1088/0022-3727/41/22/224005⟩ |
| Popis: | International audience; Large refractive index changes have been measured at the band edge frequency of 1D photonic crystals. Results concerning both thin and thick samples of high and low refractive index contrast respectively are presented. The very large value of the refractive index changes obtained at moderate pump powers thanks to the strong enhancement of the local intensity inside the photonic crystal open the way to very small volume devices for optical signal processing. However, time-resolved experiments demonstrate the photo-generation of high free carrier densities through two- or even three-photon absorptions which are shown to be also strongly enhanced at the band edge of the photonic crystal. This drawback may the most probably be circumvented by using lower pump intensities in photonic crystals showing narrower resonances. |
| Databáze: | OpenAIRE |
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