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Fast Exciton Annihilation by Capture of Electrons or Holes by Defects via Auger Scattering in Monolayer Metal Dichalcogenides
Haining Wang, Jared H. Strait, Changjian Zhang +4
The strong Coulomb interactions and the small exciton radii in two-dimensional metal dichalcogenides can result in very fast capture of electrons and holes of excitons by mid-gap d…
Coupling of Plasmon Modes in Graphene Microstructures
Parinita Nene, Jared H. Strait, Wei-Min Chan +5
A variety of different graphene plasmonic structures and devices have been proposed and demonstrated experimentally. Plasmon modes in graphene microstructures interact strongly via…
Confined Plasmons in Graphene Microstructures: Experiments and Theory
Jared H. Strait, Parinita S. Nene, Wei-Min Chan +5
Graphene, a two-dimensional material with a high mobility and a tunable conductivity, is uniquely suited for plasmonics. The frequency dispersion of plasmons in bulk graphene has b…
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 Carrier Recombination and Generation Rates for Plasmon Emission and Absorption in Graphene
Farhan Rana, Jared H. Strait, Haining Wang +1
Electron-hole generation and recombination rates for plasmon emission and absorption in Graphene are presented. The recombination times of carriers due to plasmon emission have bee…
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…