High gain strong pump free-electron lasers with fast 2[pi]/[ital k][sub [ital w]] spatial oscillations

Journal Article · Sun Aug 01 04:00:00 EDT 1993 · Physics of Fluids B; (United States)

DOI:https://doi.org/10.1063/1.860689· OSTI ID:5524019

Tsui, K H ^[1]

---

1. Instituto de Fisica, Universidade Federal Fluminense, 24.020-000 Niteroi, Rio de Janeiro (Brazil)

In the high gain strong pump regime, the radiation field amplitude and phase can vary substantially over a wiggler period. Also, due to the periodic transverse motion, the longitudinal electron energy suffers large variations over the same distance. Because of these considerations, the spatial average that leads to the classical one-dimensional free-electron laser equations is not applicable here. Thus the rederived equations suitable for the high gain strong pump regime contain 2[pi]/[ital k][sub [ital w]] periodic terms. Comparisons with the Electron Laser Facility (ELF) experiments of the Lawrence Livermore National Laboratory [Phys. Rev. Lett. [bold 54], 889 (1985); [bold 57], 2172 (1986); Phys. Rev. A [bold 35], 2184 (1987)] on the operational characteristics including the relative phase of the radiation field are made.

• OSTI ID: 5524019
• Journal Information: Physics of Fluids B; (United States), Journal Name: Physics of Fluids B; (United States) Vol. 5:8; ISSN PFBPEI; ISSN 0899-8221
• Country of Publication: United States
• Language: English

Related Subjects

42 ENGINEERING
426002* -- Engineering-- Lasers & Masers-- (1990-)
BEAM DYNAMICS
BEAMS
ELECTRICAL EQUIPMENT
ELECTROMAGNETS
ELECTRON BEAMS
ENERGY RANGE
EQUIPMENT
FREE ELECTRON LASERS
FUNCTIONS
HAMILTONIAN FUNCTION
LASERS
LEPTON BEAMS
MAGNETS
OSCILLATIONS
PARTICLE BEAMS
POTENTIALS
RELATIVISTIC RANGE
SYNCHROTRON OSCILLATIONS
WIGGLER MAGNETS