title: Broadband light-induced absorbance change in multilayer graphene.
abstract: We report the ultrafast light-induced absorbance change in CVD-grown multilayer graphene. Using femtosecond pump-probe measurements in 1100-1800 nm spectral range, we revealed broadband absorbance change when the probe photon energy was higher than that of the pump photon. The observed phenomenon is interpreted in terms of the Auger recombination and impact ionization playing a significant role in the dynamics of photoexcited carriers in graphene.
authors: Department of Physics and Mathematics, University of Eastern Finland, Joensuu, Finland.
authors: Petr A
authors: PA
authors: Obraztsov
authors: Maxim G
authors: MG
authors: Rybin
authors: Anastasia V
authors: AV
authors: Tyurnina
authors: Sergey V
authors: SV
authors: Garnov
authors: Elena D
authors: ED
authors: Obraztsova
authors: Alexander N
authors: AN
authors: Obraztsov
authors: Yuri P
authors: YP
authors: Svirko
mesh_terms: D006108:Graphite / Q000737:chemistry*; D008027:Light; D008422:Materials Testing; D049329:Nanostructures / Q000737:chemistry* / Q000648:ultrastructure*; D010316:Particle Size; D012542:Scattering, Radiation
chemical_list: D006108:Graphite