Share Email Print

Proceedings Paper

Acceleration of electrons in a vacuum by lasers and the accuracy principle of nonlinearity
Author(s): Heinrich Hora; M. Hoelss; Werner Scheid; J. W. Wang; Yu-kun Ho; Frederick Osman; Reynaldo Castillo
Format Member Price Non-Member Price
PDF $17.00 $21.00

Paper Abstract

The new principle of nonlinearity requesting a much higher degree of accuracy of all physical presumptions for the treatment, can be demonstrated ideally by the field of acceleration of electrons by lasers in vacuum. Initially the net energy conversion from electromagnetic radiation to electrons, e.g. by lasers in vacuum, was considered to be impossible based on the fact that plane-wave and phase symmetric wave packets can never transfer energy to electrons apart from Thomson or Compton scattering or the Kapitza-Dirac effect. The nonlinear nature of the electrodynamic forces of the fields to the electrons, expressed as nonlinear forces including ponderomotion or the Lorentz force, however, does permit an energy transfer if the conditions of plane waves in favor of beams and/or the phase symmetry are broken. The result in electron acceleration is now well understood as 'free wave acceleration', as 'ponderomotive scattering', as 'violent acceleration' or as 'vacuum beat wave acceleration'. The basic understanding of these phenomenon, however, relates to an accuracy principle of nonlinearity for explaining numerous discrepancies on the way to the mentioned achievement of 'vacuum laser acceleration'. From mathematically designed beam conditions, an absolute maximum of electron energy per laser interaction has been established. Numerical results strongly depend on the accuracy of the used laser fields for which examples are presented and finally tested by a criterion of the absolute maximum.

Paper Details

Date Published: 11 January 2000
PDF: 12 pages
Proc. SPIE 3886, High-Power Lasers in Energy Engineering, (11 January 2000); doi: 10.1117/12.375105
Show Author Affiliations
Heinrich Hora, Univ. of New South Wales (Australia)
M. Hoelss, Justus-Liebig Univ. Giessen (Germany)
Werner Scheid, Justus-Liebig Univ. Giessen (Germany)
J. W. Wang, Justus-Liebig Univ. Giessen (Germany) and Fudan Univ. (China)
Yu-kun Ho, Fudan Univ. (China)
Frederick Osman, Univ. Western Sydney Nepean (Australia)
Reynaldo Castillo, Univ. Western Sydney Macarthur (Australia)

Published in SPIE Proceedings Vol. 3886:
High-Power Lasers in Energy Engineering
Kunioki Mima; Gerald L. Kulcinski; William J. Hogan, Editor(s)

© SPIE. Terms of Use
Back to Top