Visualization of stokes parameters with the help of rotating–waveplate polarimeter and a liquid crystal on silicon microdisplay

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Title: Visualization of stokes parameters with the help of rotating–waveplate polarimeter and a liquid crystal on silicon microdisplay
Authors: Martínez Guardiola, Francisco Javier | Fernandez, Roberto | Márquez, Andrés | Alvarez, Mariela L | Francés, Jorge | Gallego, Sergi
Research Group/s: Holografía y Procesado Óptico
Center, Department or Service: Universidad de Alicante. Departamento de Física, Ingeniería de Sistemas y Teoría de la Señal | Universidad de Alicante. Instituto Universitario de Física Aplicada a las Ciencias y las Tecnologías
Keywords: Polarization | Stokes | Automation | Displays | Spatial Light Modulator | Parallel-Aligned | Liquid Crystal | Optics | Physics
Knowledge Area: Óptica | Física Aplicada
Date Created: 1-Jun-2017
Issue Date: 4-Jun-2017
Publisher: IATED Academy
Citation: Gómez Chova, L.; López Martínez, A.; Candel Torres. I. (Eds.). EDULEARN17 Proceedings: 9th International Conference on Education and New Learning Technologies, July 3rd-5th, 2017- Barcelona, Spain. Valencia: IATED Academy, 2017. ISBN 978-84-697-3777-4, pp. 1674-1681
Abstract: Mueller-Stokes formalism enable us to deal with polarized and unpolarized light. This formalism is hard to understand by the students because it is a new introduced concept and less intuitive than the Jones formalism. Because of that, we have designed some experiences that help students to understand and see how the Stokes parameters vary in real time. We use two commercially available optoelectronic devices. They are a Rotating Waveplate polarimeter and a Parallel Aligned Liquid Crystal on Silicon (PA-LCoS) microdisplay. The PA-LCoS acts as a variable linear retarder controlled by voltage, and the polarimeter allows us to measure the Stokes parameters in real time, and it shows the representation in the Poincaré Sphere, that it is the most intuitive representation for the Stokes parameters. Apart from the Stokes parameters, we can also use these experiences to introduce the students in a research laboratory, adding some knowledge about using LabView to automate experiments. In addition, we can use these devices and the measurements related to the light polarization to remark some basics concepts about the optical processing of information and the Fourier Transform. These experiences are suitable for different subjects, such as "Fundamentals of Engineering Optics", basic subject included in the second course of the Degree in Telecommunication, for "Photonic Devices and Optoelectronics" mandatory subject taught during the second year of the Master in Telecommunication, or the optative subject “Optical Image Acquisition and Processing” from the Master in Automation and Robotics in the University of Alicante too.
Sponsor: This work has been supported by Ministerio de Economía, Industria y Competitividad of Spain (projects FIS2014-596100-C02-1-P and FIS2015-66570-P), and Generalitat Valenciana of Spain (project PROMETEOII/2015/015).
URI: http://hdl.handle.net/10045/107542
ISBN: 978-84-697-3777-4
ISSN: 2340-1117
DOI: 10.21125/edulearn.2017.1362
Language: eng
Type: info:eu-repo/semantics/conferenceObject
Rights: © 2017, IATED
Peer Review: si
Publisher version: https://doi.org/10.21125/edulearn.2017.1362
Appears in Collections:INV - GHPO - Comunicaciones a Congresos, Conferencias, etc.

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