Paper |
Title |
Page |
TUP003 |
Quantum FEL II: Many-electron Theory |
348 |
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- P. Kling, R. Sauerbrey
HZDR, Dresden, Germany
- R. Endrich, E.A. Giese, W.P. Schleich
Uni Ulm, Ulm, Germany
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We investigate the emergence of the quantum regime of the FEL when many electrons interact simultaneously with the wiggler and the laser field. We find the Quantum FEL as the limit where only two momentum states are populated by the electrons. Moreover, we obtain exponential gain-per-pass and start-up from vacuum.
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TUP004 |
Quantum FEL I: Multi-mode Theory |
353 |
|
- R. Endrich, E.A. Giese, W.P. Schleich
Uni Ulm, Ulm, Germany
- P. Kling, R. Sauerbrey
HZDR, Dresden, Germany
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The quantum regime of the FEL in a single-mode, single-particle approximation is characterized by a two-level behaviour of the center-of-mass motion of the electrons. We extend this model to include all modes of the radiation field and analyze the effect of spontaneous emission. In particular, we investigate this scattering mechanism to derive experimental conditions for realizing an FEL in the quantum regime.
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