Medición directa de la polarización de la luz

Authors

  • Jesús Feliciano Zenón Universidad Autónoma Metropolitana
  • Manuel Fernández-Guasti Universidad Autónoma Metropolitana

DOI:

https://doi.org/10.31349/RevMexFis.70.031304

Keywords:

Polarization; Poincare sphere; Stokes parameters; extremals

Abstract

El estado de polarización de la luz normalmente se mide determinando los parámetros de Stokes. Varios autores han propuesto formas alternativas de obtener estos parámetros. Sin embargo, la esencia del método ha prevalecido. En este trabajo se propone un método de extremos, que consiste en medir intensidades máximas y mínimas. El procedimiento consta de cuatro medidas directas para obtener el estado de polarización de la luz, sin necesidad de utilizar los parámetros de Stokes. Se ofrece una representación matemática alternativa de la polarización elíptica, basada en parámetros que representan directamente la inclinación de la elipse y la relación entre sus semiejes. Se muestran resultados experimentales que se comparan favorablemente con el método tradicional.  

The polarization state of light is normally measured by determining the Stokes parameters. Several authors have proposed alternative ways to obtain these parameters. However the essence of the method has prevailed. In this work, a method of extremes is proposed, which consists of measuring maximum and minimum intensities. The procedure consists of four direct measurements to obtain the polarization state of the light, without the need to use the Stokes parameters. An alternative mathematical representation of the elliptical polarization is offered, based on parameters that directly represent the inclination of the ellipse and the relationship between its semi-axes. Experimental results that compare favorably with the traditional method are shown.

Author Biography

Manuel Fernández-Guasti, Universidad Autónoma Metropolitana

Profesor de física e investigador, en la división de Ciencias Básicas e Ingeniería de la Universidad Autónoma Metropolitana, unidad Iztapalapa.   Ícono de validado por la comunidad          

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Published

2024-05-01

How to Cite

[1]
J. Feliciano Zenón and M. Fernández-Guasti, “Medición directa de la polarización de la luz”, Rev. Mex. Fís., vol. 70, no. 3 May-Jun, pp. 031304 1–, May 2024.