Enhancement of free-electron coherent harmonic generation by use of the dispersive function on a storage ring

1989 ◽  
Vol 25 (11) ◽  
pp. 2316-2321
Author(s):  
R. Prazeres ◽  
J.M. Ortega
Keyword(s):  
Harmonic Generation ◽  
Storage Ring ◽  
Free Electron

Self-Induced Harmonic Generation in a Storage-Ring Free-Electron Laser

2008 ◽  
Vol 100 (10) ◽  
Author(s):  
G. De Ninno ◽  
E. Allaria ◽  
M. Coreno ◽  
S. Chowdhury ◽  
F. Curbis ◽  
...  
Keyword(s):  
Harmonic Generation ◽  
Storage Ring ◽  
Free Electron ◽  
Free Electron Laser

Storage-ring free-electron lasers and self-consistent harmonic generation

1998 ◽  
Vol 83 (10) ◽  
pp. 5034-5039 ◽  
Author(s):  
G. Dattoli ◽  
A. Di Pace ◽  
L. Mezi ◽  
E. Sabia
Keyword(s):  
Harmonic Generation ◽  
Storage Ring ◽  
Free Electron ◽  
Free Electron Lasers ◽  
Self Consistent

scholarly journals Physics of Superpulses in Storage Ring Free-Electron Lasers

2008 ◽  
Vol 2008 ◽  
pp. 1-5
Author(s):  
Vladimir N. Litvinenko
Keyword(s):  
Electron Beam ◽  
Phase Space ◽  
Harmonic Generation ◽  
Storage Ring ◽  
Free Electron ◽  
Power Level ◽  
Free Electron Lasers ◽  
Nonlinear Processes ◽  
Lasing Power

Contradictory to the widespread perception, storage ring free-electron lasers with substantial net gain can generate peak lasing power reaching GW levels in the so-called superpulse mode. This power level is sufficient for studies of nonlinear processes and efficient intracavity harmonic generation. This letter describes the physics of the superpulses and a phase-space refreshment in the electron beam responsible for this phenomenon.

Steady state of a fully detuned storage-ring free-electron laser

2003 ◽  
Vol 67 (2) ◽  
Author(s):  
G. De Ninno ◽  
C. Bruni ◽  
D. Nutarelli ◽  
D. Garzella ◽  
C. Thomas ◽  
...  
Keyword(s):  
Steady State ◽  
Storage Ring ◽  
Free Electron ◽  
Free Electron Laser

Numerical study of the second harmonic generation in FELs

2021 ◽  
Vol 28 (3) ◽  
Author(s):  
A. M. Kalitenko
Keyword(s):  
Second Harmonic Generation ◽  
Harmonic Generation ◽  
Free Electron ◽  
Numerical Study ◽  
Second Harmonic ◽  
Three Dimensional ◽  
X Ray ◽  
Linac Coherent Light Source ◽  
The Individual ◽  
Analytical Expressions

A numerical study of the effect of betatron oscillations on the second harmonic generation in free-electron lasers (FELs) is presented. Analytical expressions for the effective coupling strength factors are derived that clearly distinguish all contributions in subharmonics and each polarization of the radiation. A three-dimensional time-dependent numerical FEL code that takes into account the main FEL effects and the individual contribution of each electron to the second harmonic generation is presented. Also, the X- and Y-polarizations of the second harmonic are analyzed. The second harmonic was detected in experiments at the Advanced Photon Source (APS) Low Energy Undulator Test Line (LEUTL) and Linac Coherent Light Source (LCLS) in the soft X-ray regime. The approach presented in the article can be useful for a comprehensive study and diagnostics of XFELs. In the paper, the LCLS and Pohang Accelerator Laboratory X-ray Free-Electron Laser (PAL-XFEL) experiments are modeled. The simulation results are in a good agreement with the experimental data.

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