Open AccessPlasmons in graphene traversed by relativistic electronic beam with arbitrary trajectories
Author(s) -
Silvina Seguí,
Juana L. Gervasoni,
Kamran Akbari,
Z. L. Mišković,
N. R. Arista
Publication year - 2020
Publication title -
journal of physics. conference series
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.21
H-Index - 85
eISSN - 1742-6596
pISSN - 1742-6588
DOI - 10.1088/1742-6596/1412/20/202031
Subject(s) - graphene , terahertz radiation , plasmon , physics , electron , relativistic electron beam , range (aeronautics) , transition radiation , cover (algebra) , radiation , cathode ray , materials science , optoelectronics , optics , quantum mechanics , mechanical engineering , engineering , composite material
Synopsis In this work we study the energy loss of a beam of relativistic electrons impinging on a graphene sheet under oblique incidence. Using several models for the electric conductivity of graphene, we cover a wide range of frequencies of the energy loss spectrum, from the terahertz to the ultraviolet. To describe this spectrum, we consider the contribution of electronic excitations as well as that of transition radiation.