Optical characteristics of super-radiant harmonic radiation from a FEL and optical klystron-3D model
In free-electron sources of coherent light, bunching of the electrons allows the super-radiant production of coherent harmonic radiation, up to substantially high harmonic numbers. This paper presents a fully three dimensional model formulation for evaluating coherent harmonic radiation from a free-electron laser or optical klystron. The radiated electromagnetic field is expanded in terms of a set of orthonogonal free-space modes. Expansion coefficients can be evaluated once a generalized form of the FEL pendulum equation has been solved numerically. Preliminary numerical computation of the electron bunching are given. The super-radiant radiation is characterized in terms of spectral brightness parameters and the enhancement in this factor for super-radiant emission as compared to conventional harmonic wiggler radiation is estimated.
- Research Organization:
- Brookhaven National Laboratory, Upton, New York 11973
- OSTI ID:
- 5226448
- Report Number(s):
- CONF-860316-
- Journal Information:
- AIP Conf. Proc.; (United States), Vol. 147:1; Conference: Topical meeting on short wave length coherent radiation, Monterey, CA, USA, 24 Mar 1986
- Country of Publication:
- United States
- Language:
- English
Similar Records
Three dimensional modelling and numerical analysis of super-radiant harmonic emission in FEL (optical klystron)
Description of FEL3D: A three dimensional simulation code for TOK and FEL
Related Subjects
FREE ELECTRON LASERS
HARMONICS
SUPERRADIANCE
BRIGHTNESS
COHERENT RADIATION
MATHEMATICAL MODELS
ELECTROMAGNETIC RADIATION
EMISSION
ENERGY-LEVEL TRANSITIONS
LASERS
OPTICAL PROPERTIES
OSCILLATIONS
PHOTON EMISSION
PHYSICAL PROPERTIES
RADIATIONS
STIMULATED EMISSION
420300* - Engineering- Lasers- (-1989)