Nonlinear saturations of parasitic instabilities in high-efficiency free-electron lasers

Journal Article · Mon Jun 08 04:00:00 EDT 1981 · Phys. Rev. Lett.; (United States)

DOI:https://doi.org/10.1103/PhysRevLett.46.1515· OSTI ID:6322513

Lin, A T

A broad spectrum of unstable parasitic waves can arise from the interaction between the trapped electrons and the radiation generated by a free-electron laser. Imposing a dc electric field with appropriate strength at the onset of trapping can substantially narrow the unstable spectrum and allows considerable enhancement in the radiation intensity. The nonlinear mechanisms which limit the enhancement process are observed to be due to nonlinear frequency shift and detrapping.

• Research Organization: Center for Plasma Physics and Fusion Engineering, University of California, Los Angeles, California 90024
• OSTI ID: 6322513
• Journal Information: Phys. Rev. Lett.; (United States), Journal Name: Phys. Rev. Lett.; (United States) Vol. 46:23; ISSN PRLTA
• Country of Publication: United States
• Language: English

Related Subjects

42 ENGINEERING
420300* -- Engineering-- Lasers-- (-1989)
BEAMS
BOUNDARY CONDITIONS
COMPUTERIZED SIMULATION
DATA
ELECTRIC FIELDS
ELECTROMAGNETIC RADIATION
ELECTRON BEAMS
ELECTRONS
ELEMENTARY PARTICLES
ENERGY RANGE
FERMIONS
FREE ELECTRON LASERS
INFORMATION
INSTABILITY
INTERACTIONS
LASER RADIATION
LASERS
LEPTON BEAMS
LEPTONS
NUMERICAL DATA
PARAMETRIC INSTABILITIES
PARTICLE BEAMS
PLASMA INSTABILITY
PLASMA MACROINSTABILITIES
RADIATIONS
RELATIVISTIC RANGE
SATURATION
SIMULATION
THEORETICAL DATA
TRAPPED ELECTRONS