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oai:recercat.cat:2445/611832025-11-19T11:00:08Zcom_2072_1057col_2072_478821col_2072_478917

Experimental implementation of tightly focused beams with unpolarized transversal component at any plane Martínez-Herrero, Rosario Maluenda Niubó, David Juvells Prades, Ignacio Carnicer González, Arturo Holografia Òptica física Polarització (Llum) Òptica de Fourier Holography Physical optics Polarization (Light) Fourier optics The aim of this paper is to provide a formal framework for designing highly focused fields with specific transversal features when the incoming beam is partially polarized. More specifically, we develop a field with a transversal component that remains unpolarized in the focal area. Moreover, its longitudinal component exhibits non-zero values on axis. Special attention is paid to the design of the input beam and the development of the experiment. The implementation of such fields is possible by using an interferometric setup combined with the use of digital holography techniques. Experimental results are compared with those obtained numerically. 2015-01-13T07:25:27Z 2015-01-13T07:25:27Z 2014-12-23 2015-01-13T07:25:27Z info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion 1094-4087 https://hdl.handle.net/2445/61183 645419 eng Reproducció del document publicat a: http://dx.doi.org/10.1364/OE.22.032419 Optics Express, 2014, vol. 22, num. 26, p. 32419-32428 http://dx.doi.org/10.1364/OE.22.032419 (c) Optical Society of America, 2014 info:eu-repo/semantics/openAccess 10 p. application/pdf application/pdf Optical Society of America Articles publicats en revistes (Física Aplicada)