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Taghi Mohsenpour

Taghi Mohsenpour

Academic rank: Associate Professor
ORCID:
Education: PhD.
ScopusId:
Faculty: Science
Address: Department of Physics, Faculty of Basic Sciences,University of Mazandaran , Babolsar, Iran
Phone: 01135302480

Research

Title
Propagation and Interaction of Electrostatic and Electromagnetic Waves in Two Stream Free Electron Laser in the Presence of Self-Fields
Type
JournalPaper
Keywords
Interaction - Electrostatic - Electromagnetic - Two Stream - Free Electron Laser
Year
2016
Journal international journal of optics and photonics
DOI
Researchers Taghi Mohsenpour ، Hasan Ehsani Amri ، Zahra Norouzi

Abstract

A relativistic theory for two stream free electron laser (FEL) with a one-dimensional helical wiggler and ion-channel guiding in the presence of self-fields are presented. A dispersion relation (DR) which includes coupling between the electromagnetic and the electrostatic waves is derived from a fluid model, with all of the relativistic terms related to the transverse wiggler motion. This DR is solved numerically to study many unstable couplings among all possible modes. Numerical calculations are made to illustrate the effects of the self-fields on the unstable couplings. It is shown that the self-fields can produce large effects on the growth rate of the couplings.