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Numerical experiments on free-electron lasers without inversion
Yuri Rostovtsev1, Simeon Trendafilov, Alexander Artemiev
1Department of Physics and Institute for Quantum Studies, Texas A&M University, College Station, Texas 77843-4242, USA.
Physical Review Letters
|June 6, 2003
Abstract:
The inversionless free-electron laser having a drift region consisting of two magnets is analyzed. Performing numerical simulations of electron motion inside wigglers and the drift region, we have shown that this system has a positive mean gain over the entire energy distribution of the electron beam. We study the influence of emittance and the spread of electron energies on the gain.