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Evanescent field of vectorial highly non-paraxial beams

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In terms of the Fourier spectrum, a simple but general analytical expression is given for the evanescent field associated to a certain kind of non-paraxial exact solutions of the Maxwell equations. This expression enables one to compare the relative weight of the evanescent wave with regard to the propagating field. In addition, in those cases in which the evanescent term is significant, the magnitude of the field components across the transverse profile (including the evanescent features) can be determined. These results are applied to some illustrative examples.

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MARTÍNEZ-HERRERO, Rosario, MEJÍAS, Pedro M. and CARNICER GONZÁLEZ, Arturo. Evanescent field of vectorial highly non-paraxial beams. Optics Express. 2008. Vol. 16, num. 5, pags. 2845-2858. ISSN 1094-4087. [consulted: 25 of May of 2026]. Available at: https://hdl.handle.net/2445/43555

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