An analysis of the free-electron laser small-signal gain in a resonator gaussian mode

1989 ◽  
Vol 49 (6) ◽  
pp. 541-544 ◽  
Author(s):  
Jia Qi-ka
Keyword(s):  
Free Electron ◽  
Free Electron Laser ◽  
Small Signal Gain ◽  
Small Signal ◽  
Signal Gain ◽  
Gaussian Mode

scholarly journals Spontaneous emission and small-signal gain of a low-.GAMMA., waveguide-mode free-electron laser operating in the low-gain Compton regime.

1990 ◽  
Vol 18 (1) ◽  
pp. 27-38 ◽  
Author(s):  
Byung Cheol LEE ◽  
Yoshiyuki KAWAMURA ◽  
Koichi TOYODA ◽  
Masayuki KAWAI ◽  
Sang Soo LEE
Keyword(s):  
Spontaneous Emission ◽  
Free Electron ◽  
Free Electron Laser ◽  
Waveguide Mode ◽  
Small Signal Gain ◽  
Small Signal ◽  
Signal Gain

Free electron laser small signal gain measurement at 10.6 µm

1983 ◽  
Vol 19 (3) ◽  
pp. 316-321 ◽  
Author(s):  
J. Edighoffer ◽  
H. Boehmer ◽  
M. Caponi ◽  
S. Fornaca ◽  
J. Munch ◽  
...  
Keyword(s):  
Free Electron ◽  
Free Electron Laser ◽  
Small Signal Gain ◽  
Small Signal ◽  
Signal Gain ◽  
Gain Measurement

Comparison of self-fields effects in two-stream electromagnetically pumped FEL with ion-channel guiding and axial magnetic field

2011 ◽  
Vol 77 (6) ◽  
pp. 765-776 ◽  
Author(s):  
S. SAVIZ ◽  
H. MEHDIAN ◽  
FARZIN M. AGHAMIR ◽  
M. GHORANNEVIS ◽  
A. A. ASHKARRAN
Keyword(s):  
Magnetic Field ◽  
Ion Channel ◽  
Free Electron ◽  
Free Electron Laser ◽  
Axial Magnetic Field ◽  
Small Region ◽  
Numerical Calculations ◽  
Small Signal Gain ◽  
Small Signal ◽  
Electron Trajectories

AbstractA theory of two-stream free-electron laser in a combined electromagnetic wiggler and an ion-channel guiding is developed. In the analysis, the electron trajectories and the small signal gain are derived by considering the effects of self-fields. Numerical calculations show that there are seven group's trajectories rather than nine groups reported in Mehdian and Saviz (2010 Chin. Phys. B 19(1), 014214). The comparison of the normalized gains and their corresponding normalized frequencies by employing the axial magnetic field and ion-channel guiding, with and without self-fields, in FEL has been studied numerically. The results show that the normalized maximum gain in FEL with axial magnetic is larger than that for using ion-channel guiding except in small region, but the results for their corresponding normalized frequencies are opposite.

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