3 papers
physics.acc-ph2025
FEL Gain Enhancement in an Optical Klystron
Anahit H. Shamamian, Hayk L. Gevorgyan, Lekdar A. Gevorgian
A system comprising two identical helical or planar undulators separated by a gap -- viz., an optical klystron (OK) -- is investigated. A formula for the frequency distribution of…
physics.acc-ph2024
Line shape of soft photon radiation generated at zero angle in an undulator with a dispersive medium
Hayk L. Gevorgyan, Koryun L. Gevorgyan, Anahit H. Shamamian +1
The problem of undulator radiation from a bunch of charged particles, taking into account a medium polarization, is considered. In a dispersive medium, at a zero angle, in addition…
physics.plasm-ph2024
Dielectric permittivity of electron plasma with laser beat waves
Anahit H. Shamamian, Lekdar A. Gevorgian, Hayk L. Gevorgyan
Within the framework of the kinetic method, the process of interaction of a rarefied electron plasma with laser beat waves is investigated taking into account the initial spread in…