Ultrashort laser-driven dynamics of massless Dirac electrons generating valley polarization in graphene
Hamed Koochaki Kelardeh, Ulf Saalmann, Jan M. Rost
Abstract
The authors demonstrate how a suitable short laser pulse, linearly polarized along the line connecting the two Dirac points, can achieve valley polarization at a low level of ionization to minimize radiation damage.
Topics & Concepts
Massless particleGrapheneDirac fermionPhysicsPolarization (electrochemistry)ExcitationWavelengthElectronLaserCoupling (piping)Quantum mechanicsMaterials scienceChemistryPhysical chemistryMetallurgyAdvanced Fiber Laser TechnologiesLaser-Matter Interactions and ApplicationsMechanical and Optical Resonators