Nonlinear transmission dynamics in graphene close to the Dirac point

Winnerl, S.; Orlita, M.; Plochocka, P.; Kossacki, P.; Potemski, M.; Winzer, T.; Malic, E.; Knorr, A.; Sprinkle, M.; Berger, C.; Heer, W. A. de; Schneider, H.; Helm, M.

Nonlinear transmission dynamics in graphene close to the Dirac point

Winnerl, S.; Orlita, M.; Plochocka, P.; Kossacki, P.; Potemski, M.; Winzer, T.; Malic, E.; Knorr, A.; Sprinkle, M.; Berger, C.; de Heer, W. A.; Schneider, H.; Helm, M.

Abstract

We report on carrier relaxation dynamics close to the Dirac point in epitaxially grown graphene under pulsed excitation with 10 – 250 meV photons. With decreasing photon energy, we identify different regimes – induced transmission with bi- and single-exponential decay as well as induced absorption - and discuss their physical origin.

Keywords: graphene; pump-probe experiment; free-electron laser

Beteiligte Forschungsanlagen

Strahlungsquelle ELBE DOI: 10.17815/jlsrf-2-58

Verknüpfte Publikationen

DOI: 10.17815/jlsrf-2-58 is cited by this (Id 16093) publication

Beitrag zu Proceedings
36th International Conference on Infrared, Millimeter, and Terahertz Waves (IRMMW-THz 2011), 02.-07.10.2011, Houston, USA
IEEE-2011 36th International Conference on Infrared, Millimeter, and Terahertz Waves (IRMMW-THz 2011): IEEE Xplore Digital Library, doi: 10.1109/irmmw-THz.2011.6105036
Vortrag (Konferenzbeitrag)
36th International Conference on Infrared, Millimeter, and Terahertz Waves (IRMMW-THz 2011), 02.-07.10.2011, Houston, TX, USA

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