Experimental estimation of the longitudinal component of a highly focused electromagnetic field

Abstract The detection of the longitudinal component of a highly focused electromagnetic beam is not a simple task. Although in recent years several methods have been reported in the literature, this measure is still not routinely performed. This paper describes a method that allows us to estimate a...

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Autores principales:	David Maluenda, Marcos Aviñoá, Kavan Ahmadi, Rosario Martínez-Herrero, Artur Carnicer
Formato:	article
Lenguaje:	EN
Publicado:	Nature Portfolio 2021
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/ee01d1bce1864e288dde9d67464b3b53
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spelling	oai:doaj.org-article:ee01d1bce1864e288dde9d67464b3b532021-12-02T17:19:17ZExperimental estimation of the longitudinal component of a highly focused electromagnetic field10.1038/s41598-021-97164-z2045-2322https://doaj.org/article/ee01d1bce1864e288dde9d67464b3b532021-09-01T00:00:00Zhttps://doi.org/10.1038/s41598-021-97164-zhttps://doaj.org/toc/2045-2322Abstract The detection of the longitudinal component of a highly focused electromagnetic beam is not a simple task. Although in recent years several methods have been reported in the literature, this measure is still not routinely performed. This paper describes a method that allows us to estimate and visualize the longitudinal component of the field in a relatively simple way. First, we measure the transverse components of the focused field in several planes normal to the optical axis. Then, we determine the complex amplitude of the two transverse field components: the phase is obtained using a phase recovery algorithm, while the phase difference between the two components is determined from the Stokes parameters. Finally, the longitudinal component is estimated using the Gauss’s theorem. Experimental results show an excellent agreement with theoretical predictions.David MaluendaMarcos AviñoáKavan AhmadiRosario Martínez-HerreroArtur CarnicerNature PortfolioarticleMedicineRScienceQENScientific Reports, Vol 11, Iss 1, Pp 1-10 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q David Maluenda Marcos Aviñoá Kavan Ahmadi Rosario Martínez-Herrero Artur Carnicer Experimental estimation of the longitudinal component of a highly focused electromagnetic field
description	Abstract The detection of the longitudinal component of a highly focused electromagnetic beam is not a simple task. Although in recent years several methods have been reported in the literature, this measure is still not routinely performed. This paper describes a method that allows us to estimate and visualize the longitudinal component of the field in a relatively simple way. First, we measure the transverse components of the focused field in several planes normal to the optical axis. Then, we determine the complex amplitude of the two transverse field components: the phase is obtained using a phase recovery algorithm, while the phase difference between the two components is determined from the Stokes parameters. Finally, the longitudinal component is estimated using the Gauss’s theorem. Experimental results show an excellent agreement with theoretical predictions.
format	article
author	David Maluenda Marcos Aviñoá Kavan Ahmadi Rosario Martínez-Herrero Artur Carnicer
author_facet	David Maluenda Marcos Aviñoá Kavan Ahmadi Rosario Martínez-Herrero Artur Carnicer
author_sort	David Maluenda
title	Experimental estimation of the longitudinal component of a highly focused electromagnetic field
title_short	Experimental estimation of the longitudinal component of a highly focused electromagnetic field
title_full	Experimental estimation of the longitudinal component of a highly focused electromagnetic field
title_fullStr	Experimental estimation of the longitudinal component of a highly focused electromagnetic field
title_full_unstemmed	Experimental estimation of the longitudinal component of a highly focused electromagnetic field
title_sort	experimental estimation of the longitudinal component of a highly focused electromagnetic field
publisher	Nature Portfolio
publishDate	2021
url	https://doaj.org/article/ee01d1bce1864e288dde9d67464b3b53
work_keys_str_mv	AT davidmaluenda experimentalestimationofthelongitudinalcomponentofahighlyfocusedelectromagneticfield AT marcosavinoa experimentalestimationofthelongitudinalcomponentofahighlyfocusedelectromagneticfield AT kavanahmadi experimentalestimationofthelongitudinalcomponentofahighlyfocusedelectromagneticfield AT rosariomartinezherrero experimentalestimationofthelongitudinalcomponentofahighlyfocusedelectromagneticfield AT arturcarnicer experimentalestimationofthelongitudinalcomponentofahighlyfocusedelectromagneticfield
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Experimental estimation of the longitudinal component of a highly focused electromagnetic field

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