Normalized transverse emittance reduction by an azimuthally symmetric optical Bessel-beam

Levi Schächter, Wayne D. Kimura

Research output: Contribution to journalArticlepeer-review


We investigate the dynamics of an electron counter-propagating along a radially polarized optical Bessel beam. It is shown that the radiation reaction force can reduce significantly the longitudinal angular momentum implying a similar reduction in the kinetic energy and the normalized transverse emittance. For a proper description of the phenomena we employ an approximation of the Abraham–Lorentz–Dirac radiation reaction force subject to two constraints: causality is satisfied, and orthogonality of the velocity and acceleration 4-vectors is guaranteed at any instant.


  • Abraham–Lorentz–Dirac equation of motion
  • Electron cooling
  • Emittance
  • Radiation reaction force

All Science Journal Classification (ASJC) codes

  • Nuclear and High Energy Physics
  • Instrumentation


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