701 citations · 2.8k across the 8 of their papers we have counts for
8 papers
Very Slow Cooling Dynamics of Photoexcited Carriers in Graphene Observed by Optical-Pump Terahertz-Probe Spectroscopy
Jared H. Strait, Haining Wang, Shriram Shivaraman +3
Using optical-pump terahertz-probe spectroscopy, we study the relaxation dynamics of photoexcited carriers in graphene at different temperatures. We find that at lower temperatures…
Ultrafast Relaxation Dynamics of Hot Optical Phonons in Graphene
Haining Wang, Jared H. Strait, Paul A. George +8
Using ultrafast optical pump-probe spectroscopy, we study the relaxation dynamics of hot optical phonons in few-layer and multi-layer graphene films grown by epitaxy on silicon car…
Carrier Recombination and Generation Rates for Intravalley and Intervalley Phonon Scattering in Graphene
Farhan Rana, Paul A. George, Jared H. Strait +4
Electron-hole generation and recombination rates for intravalley and intervalley phonon scattering in Graphene are presented. The transverse and the longitudinal optical phonon mod…
Emission of Terahertz Radiation from SiC
Jared H. Strait, Paul A. George, Jahan Dawlaty +4
We report the emission of strong coherent broadband terahertz radiation from 6H-Silicon-Carbide (SiC) excited with optical pulses. The measured terahertz spectral signal-to-noise r…
Thickness Estimation of Epitaxial Graphene on SiC using Attenuation of Substrate Raman Intensity
Shriram Shivaraman, M. V. S. Chandrashekhar, John J. Boeckl +1
A simple, non-invasive method using Raman spectroscopy for the estimation of the thickness of graphene layers grown epitaxially on silicon carbide (SiC) is presented, enabling simu…
Ultrafast Optical-Pump Terahertz-Probe Spectroscopy of the Carrier Relaxation and Recombination Dynamics in Epitaxial Graphene
Paul A. George, Jared Strait, Jahan Dawlaty +4
The ultrafast relaxation and recombination dynamics of photogenerated electrons and holes in epitaxial graphene are studied using optical-pump Terahertz-probe spectroscopy. The con…
Measurement of the Optical Absorption Spectra of Epitaxial Graphene from Terahertz to Visible
Jahan M. Dawlaty, Shriram Shivaraman, Jared Strait +6
We present experimental results on the optical absorption spectra of epitaxial graphene from the visible to the terahertz (THz) frequency range. In the THz range, the absorption is…
Measurement of Ultrafast Carrier Dynamics in Epitaxial Graphene
Jahan M. Dawlaty, Shriram Shivaraman, Mvs Chandrashekhar +2
Using ultrafast optical pump-probe spectroscopy, we have measured carrier relaxation times in epitaxial graphene layers grown on SiC wafers. We find two distinct time scales associ…