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Effect of linear polarizers on highly focused spirally polarized fields Martínez-Herrero, Rosario Maluenda Niubó, David Juvells Prades, Ignacio Carnicer González, Arturo Polarització (Llum) Òptica física Polarization (Light) Physical optics Linear polarizers are commonly used for projecting the direction of the electric field of a transverse paraxial beam on the direction of the polarizer axis. However, the use of these devices with highly convergent field poses a practical problem because the non transversal character of electric field. In this article, we discuss the behavior of highly focused beams with spiral polarization when they pass through a polarizer. Interestingly, beams with azimuthal polarization display a non negligible irradiance in the direction of propagation after passing through a polarizer. On top of that, we found that the irradiance of a highly focused radially polarized beam after a polarizer is notably different from the projection of the field on the direction of the polarizer axis. 2017-11-30T12:07:02Z 2019-07-05T05:10:15Z 2017-07-05 2017-11-30T12:07:02Z info:eu-repo/semantics/article info:eu-repo/semantics/acceptedVersion 0143-8166 https://hdl.handle.net/2445/118316 672768 eng Versió postprint del document publicat a: https://doi.org/10.1016/j.optlaseng.2017.06.027 Optics and Lasers in Engineering, 2017, vol. 98, p. 176-180 https://doi.org/10.1016/j.optlaseng.2017.06.027 cc-by-nc-nd (c) Elsevier, 2017 http://creativecommons.org/licenses/by-nc-nd/3.0/es info:eu-repo/semantics/openAccess 11 p. application/pdf application/pdf Elsevier Articles publicats en revistes (Física Aplicada)