We measure 150 fs time-resolved 800 nm pump/ 1300 nm probe differential reflectivity and transmissivity of graphitic samples, ranging from one (graphene) to >100 layers (graphite). Carrier cooling kinetics vary gradually with number of layers.
© 2009 The Optical Society
(160.0160) Materials : Materials
(320.0320) Ultrafast optics : Ultrafast optics
(320.7130) Ultrafast optics : Ultrafast processes in condensed matter, including semiconductors
(160.4236) Materials : Nanomaterials
R. W. Newson, J. Dean, and H. M. van Driel, "Ultrafast Carrier Dynamics in Exfoliated Graphene and Graphite," in Conference on Lasers and Electro-Optics/International Quantum Electronics Conference, OSA Technical Digest (CD) (Optical Society of America, 2009), paper IThI6.
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