09 بهمن 1401
تقي محسن پور

تقی محسن پور

مرتبه علمی: دانشیار
نشانی: گروه فیزیک دانشگاه مازندران
تحصیلات: دکترای تخصصی / فیزیک پلاسما
تلفن: 01135302480
دانشکده: دانشکده علوم پایه

مشخصات پژوهش

عنوان Propagation and Interaction of Electrostatic and Electromagnetic Waves in Two Stream Free Electron Laser in the Presence of Self-Fields
نوع پژوهش مقاله چاپ شده
کلیدواژه‌ها
Interaction - Electrostatic - Electromagnetic - Two Stream - Free Electron Laser
مجله international journal of optics and photonics
شناسه DOI
پژوهشگران تقی محسن پور (نفر اول) ، سید حسن احسانی (نفر دوم) ، زهرا نوروزی (نفر سوم)

چکیده

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.