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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…
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…