Excitonic homogeneous broadening in single-wall carbon nanotubes Auteur(s): Nguyen D. T., Voisin C., Roussignol Ph., Roquelet C., Lauret J.-S, Cassabois G. (Article) Publié: Chemical Physics, vol. 413 p.102 (2013) Ref HAL: hal-00797090_v1 DOI: 10.1016/j.chemphys.2012.10.018 WoS: 000315815600012 Exporter : BibTex | endNote 11 Citations Résumé: We present a review on the excitonic homogeneous linewidth, with an emphasis on original experiments by means of nonlinear spectral hole-burning. We address three specific aspects of the excitonic homogeneous broadening: (i) the variation of the homogeneous linewidth with the sonication energy, revealing the influence of extrinsic processes such as exciton-defect interactions, (ii) the collision-induced broadening due to exciton-exciton interactions, investigated by power-dependent measurements, and (iii) the phonon-induced dephasing due to exciton-phonon interactions, deduced from temperature-dependent experiments. We discuss the specific properties of one-dimensional excitons in carbon nanotubes in the context of the homogeneous broadening. |