Electromagnetic fields of an ultra-short tightly-focused radially-polarized laser pulse
arXiv:1707.01358 · doi:10.1016/j.optcom.2017.08.053
Abstract
Fully analytic expressions, for the electric and magnetic fields of an ultrashort and tightly focused laser pulse of the radially polarized category, are presented to lowest order of approximation. The fields are derived from scalar and vector potentials, along the lines of our earlier work for a similar pulse of the linearly polarized variety. A systematic program is also described from which the fields may be obtained to any desired accuracy, analytically or numerically.
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