Title :
Ultrafast carrier dynamics in exfoliated graphene and graphite
Author :
Newson, Ryan W. ; Dean, Jesse ; Van Driel, Henry M.
Author_Institution :
Dept. of Phys. & Inst. for Opt. Sci., Univ. of Toronto, Toronto, ON, Canada
Abstract :
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.
Keywords :
electro-optical effects; graphene; graphite; high-speed optical techniques; optical materials; reflectivity; time resolved spectra; C; carrier cooling kinetics; exfoliated graphene; graphite; optical conductivities; probe differential reflectivity; probe differential transmissivity; time 150 fs; time-resolved pump; ultrafast carrier dynamics; wavelength 1300 nm; wavelength 800 nm; Atom optics; Atomic force microscopy; Atomic layer deposition; Laser excitation; Optical microscopy; Optical pumping; Physics; Probes; Reflectivity; Ultrafast optics; (160.4236) Nanomaterials; (320.7130) Ultrafast processes in condensed matter, including semiconductors;
Conference_Titel :
Lasers and Electro-Optics, 2009 and 2009 Conference on Quantum electronics and Laser Science Conference. CLEO/QELS 2009. Conference on
Conference_Location :
Baltimore, MD
Print_ISBN :
978-1-55752-869-8
Electronic_ISBN :
978-1-55752-869-8
