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Propriétés optiques de nano-structures métalliques et semi-conductrices

Guillaume Bachelier 1
1 CP
Laboratoire Physique des Solides de Toulouse
Abstract : The Raman spectroscopy, involving phonons with nanometric wavelengths, is a powerful technique for investigating nanostructures. It evidences the localisation or mixing effects associated with the electronic states. On the other hand, the spatial coherence of the vibrational modes, at the origin of Raman interferences, allows to probe both electronic and acoustic properties. The approach developed in this manuscript lies in the comparison between measurements and scattering cross section calculations. It gives a quantitative understanding of both frequencies and intensities of observed Raman features. This approach allowed to identify a new coupling mechanism between plasmons and phonons which indeed dominates the low-frequency Raman scattering in metal nano-particules.
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https://tel.archives-ouvertes.fr/tel-00008229
Contributor : Guillaume Bachelier <>
Submitted on : Sunday, January 23, 2005 - 11:43:37 AM
Last modification on : Friday, January 10, 2020 - 9:10:15 PM
Long-term archiving on: : Friday, April 2, 2010 - 9:33:26 PM

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  • HAL Id : tel-00008229, version 1

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Guillaume Bachelier. Propriétés optiques de nano-structures métalliques et semi-conductrices. Acoustique [physics.class-ph]. Université Paul Sabatier - Toulouse III, 2004. Français. ⟨tel-00008229v1⟩

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