High Gain Free Electron Laser Oscillators.

Abstract

We have carried out a fully relativistic, nonlinear analysis of the spatial and temporal evolution of multiple modes within a free electron laser oscillator. The analysis is both analytical and numerical, and is conducted self-consistently with the framework of the Vlasov-Maxwell system of equations, including the collective effects produced by the longitudinal space-charge wave potential. The analytic calculation of the small signal gain yields a dispersion relation for the moderate to high gain (Gamma L > 1) operation of the free electron laser. The numerical simulations verify the analytic results for the linear gain regime and predicts high efficiencies for the nonlinear saturated state of the radiation fields. Keywords include: FEL oscillator; High gain oscillator; and Multi-mode oscillator.

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Document Details

Document Type
Technical Report
Publication Date
Jun 06, 1986
Accession Number
ADA169002

Entities

People

  • Cha-Mei Tang
  • Phillip A. Sprangle
  • W. P. Marable

Organizations

  • United States Naval Research Laboratory

Tags

Communities of Interest

  • Energy and Power Technologies

DTIC Thesaurus Topics

  • Classification
  • Dispersion Relations
  • Dispersions
  • Distribution Functions
  • Electromagnetic Radiation
  • Electron Beams
  • Electrons
  • Equations
  • Free Electron Lasers
  • Free Electrons
  • Gain
  • High Gain
  • Lasers
  • Oscillators
  • Personal Information Managers
  • Radiation
  • Simulations

Fields of Study

  • Physics

Readers

  • Electronics Engineering
  • Plasma Physics / Magnetohydrodynamics
  • Pulsed Power and Plasma Physics.

Technology Areas

  • Directed Energy
  • Microelectronics
  • Space
  • Space - Hall-Effect Thruster