Theoretical Development of the Free-Electron Laser
The stimulated emission of radiation of a relativistic beam of electrons in a transverse magnetic field has been analyzed theoretically by several authors1–6, and has very recently been demonstrated experimentally at Stanford7,8 by J. Madey and coworkers.
KeywordsBoltzmann Equation Bloch Equation Electron Distribution Function Saturation Regime Small Signal Gain
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- 8.D. A. G. Deacon, L. R. Elias, J. M. J. Madey, H. A.Schwettmann, and T. J. Smith, VII Winter Symposium on high power lasers, Park City (Utah, 1977).Google Scholar
- 9.W. Heitler, The Quantum Theory of Radiation, (Oxford University Press, 1954).Google Scholar
- 10.I. Lerche, in Relativistic Plasma Physics, Ed. by O. Buneman and W. B. Pardo, (Benjamin, N.Y., 1968), p. 159.Google Scholar
- 11.In reality, this walking potential is moving quite fast, sinceks ≫ki and therefore βs ≃ 1. W. E. Lamb, Jr., suggested that it might be more appropriate to call it a “jogging”potential.Google Scholar
- 12.See for instance J. D. Jackson, Classical Electrodynamics(Wiley, N.Y., 1962).Google Scholar
- 13.See for instance L. Allen and J. H. Eberly, Optical Resonance and Two-Level Atoms (Wiley-Interscience, N.Y., 1975).Google Scholar
- 14.H. Al-Abawi, F. A. Hopf, and P. Meystre, unpublished.Google Scholar