Broadband electromagnetic response and ultrafast dynamics of few-layer epitaxial graphene
arXiv:0903.0577 · doi:10.1063/1.3122348
Abstract
We study the broadband optical conductivity and ultrafast carrier dynamics of epitaxial graphene in the few-layer limit. Equilibrium spectra of nominally buffer, monolayer, and multilayer graphene exhibit significant terahertz and near-infrared absorption, consistent with a model of intra- and interband transitions in a dense Dirac electron plasma. Non-equilibrium terahertz transmission changes after photoexcitation are shown to be dominated by excess hole carriers, with a 1.2-ps mono-exponential decay that reflects the minority-carrier recombination time.
4 pages, 3 figures, final version
References in corpus (13)
- Universal Dynamic Conductivity and Quantized Visible Opacity of Suspended Graphene
- Substrate-induced band gap opening in epitaxial graphene
- Measurement of the Optical Conductivity of Graphene
- The optical conductivity of graphene in the visible region of the spectrum
- Epitaxial graphene
- A new electromagnetic mode in graphene
- Measurement of Ultrafast Carrier Dynamics in Epitaxial Graphene
- Ultrafast Optical-Pump Terahertz-Probe Spectroscopy of the Carrier Relaxation and Recombination Dynamics in Epitaxial Graphene
- Unusual Microwave Response of Dirac Quasiparticles in Graphene
- Measurement of the Optical Absorption Spectra of Epitaxial Graphene from Terahertz to Visible
- Synthesis and characterization of atomically-thin graphite films on a silicon carbide substrate
- Carrier Recombination and Generation Rates for Intravalley and Intervalley Phonon Scattering in Graphene
- Electron-Hole Generation and Recombination Rates for Coulomb Scattering in Graphene
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- Non-equilibrium dynamics of photo-excited electrons in graphene: collinear scattering, Auger processes, and the impact of screening
- Very Slow Cooling Dynamics of Photoexcited Carriers in Graphene Observed by Optical-Pump Terahertz-Probe Spectroscopy
- Relaxation of Optically Excited Carriers in Graphene
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- Hot phonon decay in supported and suspended exfoliated graphene
- Ultrafast Carrier Recombination and Generation Rates for Plasmon Emission and Absorption in Graphene
- Terahertz Probe of Photoexcited Carrier Dynamics in Dirac Semimetal Cd3As2
- Femtosecond Pump-Probe Studies of Reduced Graphene Oxide Thin Films
- Slow noncollinear Coulomb scattering in the vicinity of the Dirac point in graphene
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- Relativistic Drude Response of Photoexcited Dirac Quasiparticles in Graphene
- Carrier dynamics in graphene: ultrafast many-particle phenomena
- Broadband microwave and time-domain terahertz spectroscopy of CVD grown graphene
- Recent advances in terahertz photonic technologies based on graphene and their applications
- Probing terahertz surface plasmon waves in graphene structures
- Microscopic theory of ultrafast dynamics of carriers photoexcited by THz and near-infrared linearly-polarized laser pulses in graphene
- Plasmon anomaly in the dynamical optical conductivity of graphene
- Two-probe study of hot carriers in reduced graphene oxide
- Transient Charge and Energy Balance in Graphene Induced by Ultrafast Photoexcitation
- Negative differential transmission in graphene
- On the interpretation of manifold ultrafast dynamics in supported graphene