Commenced in January 2007
Frequency: Monthly
Edition: International
Paper Count: 30169
Nonlinear Simulation of Harmonically Coupled Two-Beam Free-Electron Laser

Authors: M. Zahedian, B. Maraghechi, M. H. Rouhani

Abstract:

A nonlinear model of two-beam free-electron laser (FEL) in the absence of slippage is presented. The two beams are assumed to be cold with different energies and the fundamental resonance of the higher energy beam is at the third harmonic of lower energy beam. By using Maxwell-s equations and full Lorentz force equations of motion for the electron beams, coupled differential equations are derived and solved numerically by the fourth order Runge–Kutta method. In this method a considerable growth of third harmonic electromagnetic field in the XUV and X-ray regions is predicted.

Keywords: Free-electron laser, Higher energy beam, Lowerenergy beam, Two-beam

Digital Object Identifier (DOI): doi.org/10.5281/zenodo.1335122

Procedia APA BibTeX Chicago EndNote Harvard JSON MLA RIS XML ISO 690 PDF Downloads 1009

References:


[1] P. G. O-Shea and H. P. Freund, "Free-Electron Lasers: Status and Applications," SCIENCE, vol. 292, pp. 1853-1858, June 2001.
[2] S. Krishnagopal , V. Kumar, S. Maiti , S. S. Prabhu and S. K. Sarkar, "Free-electron lasers," Curr. Sci., vol. 87, pp. 1066-1078, October 2004.
[3] H. P. Freund, D. Douglas, P.G. O-Shea, "Multiple-beam free-electron lasers ," Nucl. Instr. Meth. Phys. Res. A, vol. 507, pp. 373-377, 2003.
[4] M. H. Rouhani and B. Maraghechi, "Efficiency enhancement in a single-pass Raman free electron laser," Phys. Plasmas ,vol. 16, 093110, September 2009.
[5] B. Maraghechi and M. H. Rouhani, "Simulation Of Raman Free- Electron Laser Amplifier With Planar Wiggler And Ion Channel Guiding," in 2009 Proc. FEL09 Conf. , Liverpool, pp. 91-94.
[6] B. W. J. McNeil and G. R. M. Robb, "Two-beam free-electron laser," Phys. Rev. E, vol. 70, 035501, 2004.
[7] M. H. Rouhani, B. Maraghechi, and H. Saberi, "Efficiency enhancement of a two-beam free-electron laser," Phys. Plasmas, vol. 16, 123105, December 2009.
[8] H. P. Freund, "Nonlinear analysis of free-electron-laser amplifiers with axial guide fields," Phys. Rev. A, vol. 27, pp. 1977-1988. April 1983.
[9] H. P. Freund and J. M. Antonsen, Principles of Free Electron Laser, London: Chapman and Hall, 1996, pp. 153-244.