Smith–Purcell radiation amplifier. (14th October 2015)

• Record Type: Journal Article
• Authors: Oganesyan, Koryun B
• Is Part Of: Laser physics letters. Volume 12:Number 11(2015:Nov.)
• Publication Date: 2015-10-14
• Subjects: Smith–Purcell free electron laser -- radiation -- dispesion relation; Lasers -- Periodicals; Physics -- Periodicals; 621.366
• DOI: 10.1088/1612-2011/12/11/116002
• Languages: English
• ISSNs: 1612-2011

Abstract

Abstract: In the framework of the earlier derived dispersion equation, we study induced Smith–Purcell (SP) radiation of relativistic electron beam in the absence of a resonator. We offer a new method for calculation of coefficients for partial amplitudes in the case of rectangular grating. Using this method, as an important example of applications of our earlier derived results (Klochkov D N, Artemyev A I, Oganesyan K B, Rostovtsev Y V and Hu C K 2010 J. Mod. Opt . 57 2060–8 ), we calculate the growth rate of the SPFEL with a rectangular grating. The growth rate dependences on harmonic number, observation angle and relativistic factor are presented.