Transition radiation of a charged particle in the terahertz range at the vacuum-graphene-dielectric interface

The study investigates the transition radiation generated when a charged particle passes through a vacuum-graphene-dielectric structure. The frequency and angular dependencies of the transition radiation energy were analyzed for different values of graphene's Fermi energy. A comparative analysis of the radiation energy was conducted with and without graphene at the interface. It was shown that the transition radiation energy increases with the growth of graphene's Fermi energy.