DLA Flat vs Periodic Structure for Low Energy Electron Beam Acceleration

Abstract

The dependence of the acceleration rate of charged particle bunches with the energy of 300 keV by a surface wave excited by a laser pulse is analyzed using flat and periodic chip structures. It is shown that when using periodic structures with the 2nd operating spatial mode, there is a decrease in the acceleration rate in comparison with the use of periodic structures with the 1st operation mode. It is also demonstrated that the acceleration rate when using a flat dielectric structure is significantly higher in comparison with a periodic chip structure.