Modelling of Ultrashort Electromagnetic Clusters Forming in Two-Stream Superheterodyne Free Electron Lasers

Abstract

Two-stream superheterodyne FELs are characterized by exceptionally high rates of the amplification of electromagnetic waves in the submillimeter- IR range. Such high rates of the amplification are achieved through the use of the additional amplification mechanism of SCW due to the twostream instability [1]. There is a possibility of the generation of ultrashort intense clusters of an electromagnetic field on the basis of such multiharmonic TSFEL as a result of the superposition of many harmonics. Such ultrashort electromagnetic clusters, as well as ultrashort pulses can have wide practical application for a number of fundamental and applied researches in physics, chemistry, biology and medicine.