The free-electron laser - Maxwell's equations driven by single-particle currentsIt is shown that if single particle currents are coupled to Maxwell's equations, the resulting set of self-consistent nonlinear equations describes the evolution of the electron beam and the amplitude and phase of the free-electron-laser field. The formulation is based on the slowly varying amplitude and phase approximation, and the distinction between microscopic and macroscopic scales, which distinguishes the microscopic bunching from the macroscopic pulse propagation. The capabilities of this new theoretical approach become apparent when its predictions for the ultrashort pulse free-electron laser are compared to experimental data; the optical pulse evolution, determined simply and accurately, agrees well with observations.
Document ID
19800054705
Acquisition Source
Legacy CDMS
Document Type
Conference Proceedings
Authors
Colson, W. B. (NASA Lyndon B. Johnson Space Center Houston, TX, United States)
Ride, S. K. (NASA Johnson Space Center Houston, Tex., United States)
Date Acquired
August 10, 2013
Publication Date
January 1, 1980
Subject Category
Lasers And Masers
Meeting Information
Meeting: Free-electron generators of coherent radiation