Title :
THz carrier dynamics in epitaxial graphene
Author :
Divin, Charles J. ; Sun, Dong ; Berger, Claire ; De Heer, Walt ; First, P.N. ; Norris, Theodore B.
Author_Institution :
Center for Ultrafast Opt. Sci., Univ. of Michigan, Ann Arbor, MI, USA
Abstract :
Ultrafast optical pump - THz probe spectroscopy is used to measure the conductivity recovery dynamics in epitaxial graphene. The observed dynamics are insensitive to probe frequency, with recovery rates consistent with mid-IR measurements of carrier cooling.
Keywords :
graphene; high-speed optical techniques; optical pumping; terahertz spectroscopy; THz carrier dynamics; THz probe spectroscopy; carrier cooling; conductivity recovery dynamics; epitaxial graphene; mid-IR measurements; ultrafast optical pump; Conductivity; Frequency; High speed optical techniques; Optical filters; Optical pumping; Optical resonators; Probes; Pulse amplifiers; Spectroscopy; Ultrafast optics; (160.6000) Semiconductor materials; (320.7150) Ultrafast spectroscopy;
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
