Nonlinear study on the terahertz free electron laser amplifier with elliptical waveguide

Journal Article · Mon Dec 15 00:00:00 EST 2008 · Physics of Plasmas

DOI:https://doi.org/10.1063/1.2988764· OSTI ID:21259735

Minghong, Wang ^[1]; Pukun, Liu; Qianzhong, Xue ^[1]; Ruixin, Dong ^[2]

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1. Institute of Electronics, Chinese Academy of Sciences, Beijing, 100080 (China)
2. School of Physics Science and Information Engineering, Liaocheng University, Liaocheng, Shandong, 252059 (China)

The use of an elliptical waveguide and a planar wiggler with parabolically tapered pole pieces as the terahertz free electron laser (FEL) amplifier model is proposed. A set of self-consistent differential equations for the FEL amplifier is derived by using nonlinear theory, and the characteristics of this amplifier are numerically analyzed. Our numerical simulations are conducted to the 1000 GHz amplifier with an electron beam energy of 1.74 MeV. The results indicate that the peak power of 180 kW and frequency bandwidth of 13.5 GHz can be obtained.

• OSTI ID: 21259735
• Journal Information: Physics of Plasmas, Vol. 15, Issue 12; Other Information: DOI: 10.1063/1.2988764; (c) 2008 American Institute of Physics; Country of input: International Atomic Energy Agency (IAEA); ISSN 1070-664X
• Country of Publication: United States
• Language: English

Related Subjects

46 INSTRUMENTATION RELATED TO NUCLEAR SCIENCE AND TECHNOLOGY
AMPLIFIERS
DIFFERENTIAL EQUATIONS
ELECTRON BEAMS
FREE ELECTRON LASERS
GHZ RANGE
NONLINEAR PROBLEMS
SIMULATION
WAVEGUIDES