Effect of reflections and losses in Smith Purcell free-electron lasers

Details Effect of reflections and losses in Smith Purcell free-electron lasers Effect of reflections and losses in Smith Purcell free-electron lasers

Nov 2006

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2006njph....8..289a&link_type=abstract

New Journal of Physics, Volume 8, Issue 11, pp. 289 (2006).

Physics

12

Scientific paper

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.

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