Smith-Purcell radiation amplifier

被引：20
|
作者：
Oganesyan, Koryun B. [1 ,2 ]
机构：
[1] Yerevan Phys Inst, Alikhanyan Natl Sci Lab, Yerevan 0036, Armenia
[2] Joint Inst Nucl Res, LIT, Dubna 141980, Russia
来源：
LASER PHYSICS LETTERS | 2015年 / 12卷 / 11期
关键词：
Smith-Purcell free electron laser; radiation; dispesion relation; FREE-ELECTRON LASER; RELATIVISTIC ELECTRONS; EMISSION;
D O I：
10.1088/1612-2011/12/11/116002
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
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.
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页数：6
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