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Trapping and acceleration of charged particles in Bessel beams

Published online by Cambridge University Press:  28 November 2006

V. H. MELLADO
Affiliation:
Instituto de Fìsica, Universidad Nacional Autónoma de México, Mexico
S. HACYAN
Affiliation:
Instituto de Fìsica, Universidad Nacional Autónoma de México, Mexico
R. JÁUREGUI
Affiliation:
Instituto de Fìsica, Universidad Nacional Autónoma de México, Mexico

Abstract

We study the motion of a classical relativistic charged particle in the electromagnetic field of a Bessel beam exhibiting vector optical vortices, and show how its dynamical properties, such as linear and angular momentum, are transmitted to the particle. The effects of different polarizations are taken into account using transverse electric and magnetic modes, and their superpositions. The constants of motion are identified for the most general case. We report typical numerical results for axial and radial motion for various configurations, with an estimate of expected axial accelerations when transverse magnetic Bessel modes are used. The Lorentz transformation properties of the field are used throughout in order to simplify the calculations.

Type
Research Article
Copyright
© 2006 Cambridge University Press

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