Coherent dynamics of a free-electron laser with arbitrary magnet geometry. I. General formalism
- 1 June 1980
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review A
- Vol. 21 (6) , 2000-2008
- https://doi.org/10.1103/physreva.21.2000
Abstract
Coupled equations describing the propagation of the laser field (Maxwell equation) and the evolution of the electron distribution (generalized pendulum equations) are derived classically for the case of ultrarelativistic electrons moving in a helical magnet with an arbitrary slowly varying amplitude. The equations apply to coherent transient phenomena, such as picosecond pulse propagation, as well as to continuous-wave laser operation.Keywords
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