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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…
Measurements of the Carrier Dynamics and Terahertz Response of Oriented Germanium Nanowires using Optical-Pump Terahertz-Probe Spectroscopy
Jared H. Strait, Paul A. George, Mark Levendorf +3
We have measured the terahertz response of oriented germanium nanowires using ultrafast optical-pump terahertz-probe spectroscopy. We present results on the time, frequency, and po…
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…