Launching Plasmons in a Two-Dimensional Material Traversed by a Fast Charged Particle.

ABSTRACT: We use a dielectric-response formalism to compute the induced charge density and the induced potential in a conductive two-dimensional (2D) material, traversed by a charged particle that moves on a perpendicular trajectory with constant velocity. By analyzing the electric force on the material via the Maxwell stress tensor, we showed that the polarization of the material can be decomposed into a conservative part related to the dynamic image force, and a dissipative part describing the energy and momentum transfer to the material, which is ultimately responsible for launching the plasma oscillation waves in the material. After showing that the launching dynamics is fully determined by the Loss function of the material, we used a conductivity model suitable for the terahertz to the midinfra

SUBMITTER: Marks GA 

PROVIDER: S-EPMC9921502 | biostudies-literature | 2023 Jan

REPOSITORIES: biostudies-literature