Nonlinear study on Raman regime free electron laser with elliptical waveguide

A free electron laser (FEL) amplifier with an elliptical waveguide and a planar wiggler is proposed. A set of coupled operating equations for this FEL operating in the Raman regime is derived using three-dimensional nonlinear theory. The numerical simulation code is developed, and the characteristic...

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Bibliographic Details
Published in:Journal of physics. D, Applied physics Applied physics, 2006-08, Vol.39 (15), p.3332-3336
Main Authors: Wang, Minghong, Xiao, Xiaoguang, Liang, Zheng
Format: Article
Language:English
Subjects:
Electromagnetism
electron and ion optics
Exact sciences and technology
Free-electron lasers
Fundamental areas of phenomenology (including applications)
Laser optical systems: design and operation
Optics
Physics
Radiation by moving charges
Resonators, cavities, amplifiers, arrays, and rings
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Summary:A free electron laser (FEL) amplifier with an elliptical waveguide and a planar wiggler is proposed. A set of coupled operating equations for this FEL operating in the Raman regime is derived using three-dimensional nonlinear theory. The numerical simulation code is developed, and the characteristics of this FEL amplifier are analysed numerically. Our numerical simulations are conducted to model a 34.6 GHz amplifier with an electron beam with an energy of 3.1 MeV. The results indicate that the elliptical waveguide is more suitable for a FEL with a planar wiggler system than a rectangular waveguide.
ISSN:0022-3727
1361-6463
DOI:10.1088/0022-3727/39/15/016