Momentum alignment of photoexcited carriers in graphene: The route to optovalleytronics

• Main Authors: Hartmann, Richard R., Portnoi, Mikhail E.
• Format: text
• Published: Animo Repository 2011
• Subjects: Graphene; Electronic excitation; Relaxation phenomena; Valleytronics; Physics
• Online Access: https://animorepository.dlsu.edu.ph/faculty_research/7395
• Institution: De La Salle University

A linearly polarized excitation is shown to create a strongly anisotropic distribution of photoex­cited carriers in graphene, where the momenta of photoexcited carriers are aligned preferentially normal to the polarization plane. This hitherto overlooked effect offers an experimental tool to gen­era...