Effect of reflections and losses in Smith-Purcell free-electron lasers
Langue
en
Article de revue
Ce document a été publié dans
New Journal of Physics. 2006, vol. 8, p. 289
Institute of Physics: Open Access Journals
Résumé en anglais
We have included the effects of losses in the grating surface and reflections at the ends of the grating in the theory of Smith-Purcell free-electron lasers. Computations show that losses typically increase the start current ...Lire la suite >
We have included the effects of losses in the grating surface and reflections at the ends of the grating in the theory of Smith-Purcell free-electron lasers. Computations show that losses typically increase the start current by about 10%. The complex reflection coefficient for the evanescent wave is computed using numerical simulations, and is found to have a magnitude on the order of 30%. This typically increases or decreases the start current by about 10%, depending on the phase of the round-trip reflection.< Réduire
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