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

fYear

2009

fDate

2-4 June 2009

Firstpage

1

Lastpage

2

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;

fLanguage

English

Publisher

ieee

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

Type

conf

Filename

5225396