Theory of Generation of Coherent Radiation by a Combination of a Free-Electron Laser and an Active Molecular Medium

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Published under licence by IOP Publishing Ltd
, , Citation Robert A Smith and Hans Wilhelmsson 1981 Phys. Scr. 23 797 DOI 10.1088/0031-8949/23/5A/008

1402-4896/23/5A/797

Abstract

A theoretical investigation is made of the generation of coherent radiation by a relativistic electron beam interpenetrating an active molecular medium. The system is assumed to be acted upon by a ripple magnetic field. A cold-fluid model is used for the description of the relativistic electron beam and a two-level Lorentz model for the molecular medium. A dispersion relation is deduced which governs the various possibilities of wave couplings and associated instabilities.

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10.1088/0031-8949/23/5A/008