scholarly journals Erratum: Properties of the third harmonic of the radiation from self-amplified spontaneous emission free electron laser [Phys. Rev. ST Accel. Beams9, 030702 (2006)]

2007 ◽  
Vol 10 (1) ◽  
Author(s):  
E. L. Saldin ◽  
E. A. Schneidmiller ◽  
M. V. Yurkov
Keyword(s):  
Laser Phys ◽  
Spontaneous Emission ◽  
Free Electron ◽  
Free Electron Laser ◽  
Amplified Spontaneous Emission ◽  
Third Harmonic ◽  
The Third

scholarly journals Switching of the harmonic order in free-electron lasers by controlling the density modulation of an electron bunch

2018 ◽  
Vol 25 (5) ◽  
pp. 1317-1322 ◽  
Author(s):  
Norihiro Sei ◽  
Hiroshi Ogawa ◽  
QiKa Jia
Keyword(s):  
Free Electron ◽  
Free Electron Laser ◽  
Extreme Ultraviolet ◽  
Free Electron Lasers ◽  
Harmonic Order ◽  
Third Harmonic ◽  
X Ray ◽  
The Third ◽  
Density Modulation ◽  
Higher Harmonic

It was demonstrated that harmonic order in free-electron laser (FEL) oscillations could be switched by adjusting the dispersive gap of the optical klystron ETLOK-III in the storage ring NIJI-IV. The effective gains for the fundamental and third-harmonic FEL oscillations were evaluated and it was confirmed that the FEL oscillated at the order of the harmonic with the higher effective gain. The ratio between the effective gain for the fundamental and that for the third harmonic was controlled by the dispersive gap. It was also demonstrated that a spectral measurement of the FEL-based Compton scattering X-ray beam was effective for directly observing the switching of the harmonic order. These results contribute to the development of higher-harmonic FEL oscillations suppressing the fundamental FEL oscillation in the extreme ultraviolet and X-ray regions.

Measurements of Gain Larger than105at12μmin a Self-Amplified Spontaneous-Emission Free-Electron Laser

1998 ◽  
Vol 81 (22) ◽  
pp. 4867-4870 ◽  
Author(s):  
M. J. Hogan ◽  
C. Pellegrini ◽  
J. Rosenzweig ◽  
S. Anderson ◽  
P. Frigola ◽  
...  
Keyword(s):  
Spontaneous Emission ◽  
Free Electron ◽  
Free Electron Laser ◽  
Amplified Spontaneous Emission

Measurements of High Gain and Intensity Fluctuations in a Self-Amplified, Spontaneous-Emission Free-Electron Laser

1998 ◽  
Vol 80 (2) ◽  
pp. 289-292 ◽  
Author(s):  
M. Hogan ◽  
C. Pellegrini ◽  
J. Rosenzweig ◽  
G. Travish ◽  
A. Varfolomeev ◽  
...  
Keyword(s):  
Spontaneous Emission ◽  
Free Electron ◽  
Free Electron Laser ◽  
Amplified Spontaneous Emission ◽  
High Gain ◽  
Intensity Fluctuations
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