Speaker
Description
The relaxation of the polarization of the medium as a result of interaction with charged particles leads to the formation of various types of radiation processes. Examples that have been studied in detail in the literature include Cherenkov radiation (CR), transition radiation, and diffraction radiation. The radiation processes mentioned above are also sources of electromagnetic radiation with controllable characteristics in different frequency ranges. In this presentation, we will discuss the peculiarities of electromagnetic field generated by charged particles or bunches moving along various trajectories in spherically symmetric layered media. Specifically, it has been demonstrated that the impact of boundaries on radiation processes can exhibit a resonant character.
The work was partially supported by the Science Committee of RA, in the frames of the research project № 21AG-1C069.