Article ID Journal Published Year Pages File Type
1540412 Optics Communications 2009 5 Pages PDF
Abstract

Focussing on null fields as simple models of laser beams we discuss the classical relativistic motion of charges in strong electromagnetic fields. We suggest a universal, Lorentz and gauge invariant measure of laser intensity and explicitly calculate and interpret it for crossed field, plane wave and vortex models.

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Related Topics
Physical Sciences and Engineering Materials Science Electronic, Optical and Magnetic Materials
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A Lorentz and gauge invariant measure of laser intensity
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