Free-Electron Lasers Without Inversion: Design of Two-Magnet Drift Region
Optics
2007-05-23 v1 Accelerator Physics
Plasma Physics
Abstract
We propose a two-magnet design of a drift region for a free-electron laser without inversion (FELWI). By performing direct calculations of the phase shifts for electrons passing the drift region, we prove that the small-signal gain integrated over the detuning is positive and is inversely proportional to the energy spread of the ``hot'' electron beam. The dispersion and the geometry of the drift region are specified, and the requirements to the electron beam quality, including the transverse size and the angular spread, are found.
Keywords
Cite
@article{arxiv.physics/0207032,
title = {Free-Electron Lasers Without Inversion: Design of Two-Magnet Drift Region},
author = {A. I. Artemyev and Yu. V. Rostovtsev and S. Trendafilov and K. Kapale and M. V. Fedorov and G. Kurizki and M. O. Scully},
journal= {arXiv preprint arXiv:physics/0207032},
year = {2007}
}
Comments
14 pages, 9 figures (10 eps files)