EXPLICIT EXPRESSION FOR GROWTH-RATES IN FREE-ELECTRON LASERS WITH HELICAL AND AXIAL MAGNETIC-FIELDS

Date

1992-10-01

Author

DEMOKAN, O
KABAK, Y

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The dispersion relations of transverse and longitudinal modes in a free-electron laser with helical and axial magnetic fields are derived exactly for the one-dimensional case. The modes with positive and negative helicity are distinguished clearly. An analytically solvable expression for the growth rate of the modes, in resonance with the beam, is obtained. The dependence of the growth rate on system parameters is studied for broad ranges of values and comments on optimization are made.

Subject Keywords

Free electron lasers, Laser modes, Magnetic field configurations, Doppler effect, Electron bunching, Wiggler magnets, Lasers and masers

URI

https://hdl.handle.net/11511/64439

Journal

PHYSICS OF FLUIDS B-PLASMA PHYSICS

DOI

https://doi.org/10.1063/1.860393

Collections

Department of Physics, Article

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Citation Formats

O. DEMOKAN and Y. KABAK, “EXPLICIT EXPRESSION FOR GROWTH-RATES IN FREE-ELECTRON LASERS WITH HELICAL AND AXIAL MAGNETIC-FIELDS,” PHYSICS OF FLUIDS B-PLASMA PHYSICS, pp. 3382–3389, 1992, Accessed: 00, 2020. [Online]. Available: https://hdl.handle.net/11511/64439.