Analysis of polarization vortices generated from a polarization diffractive mask

In this work we analyze the diffraction pattern generated by a four quadrant polarization mask. Different quadrants transmit different linear polarizations. We show that the diffraction pattern, in the absence of analyzer, shows the intensity distribution characteristic from a square aperture, but t...

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Detalles Bibliográficos
Autores principales: Moreno, I., Iemmi, C., Campos, J., Yzuel, M.J., Vargas, A.
Formato: CONF
Materias:
Jones matrices
Liquid crystal displays
Optical diffractive elements
Optical vortices
Polarization
Computer graphics
Diffraction
Diffraction gratings
Diffraction patterns
Digital arithmetic
Digital image storage
Holographic interferometry
Image processing
Imaging systems
Imaging techniques
Interferometry
Light sources
Liquid crystals
Nematic liquid crystals
Optical data processing
Vortex flow
Diffracted field
Digital image processing
Experimental verification
Four quadrants
Intensity distributions
Linear (LP) polarization
Optical (PET) (OPET)
Singular points
State of polarization (SOP)
Twisted nematic (TN) liquid crystals
Acceso en línea:http://hdl.handle.net/20.500.12110/paper_0277786X_v7000_n_p_Moreno
Aporte de:
Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) de Universidad de Buenos Aires
id todo:paper_0277786X_v7000_n_p_Moreno
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spelling todo:paper_0277786X_v7000_n_p_Moreno2023-10-03T15:16:38Z Analysis of polarization vortices generated from a polarization diffractive mask Moreno, I. Iemmi, C. Campos, J. Yzuel, M.J. Vargas, A. Jones matrices Liquid crystal displays Optical diffractive elements Optical vortices Polarization Computer graphics Diffraction Diffraction gratings Diffraction patterns Digital arithmetic Digital image storage Holographic interferometry Image processing Imaging systems Imaging techniques Interferometry Light sources Liquid crystal displays Liquid crystals Nematic liquid crystals Optical data processing Vortex flow Diffracted field Digital image processing Experimental verification Four quadrants Intensity distributions Linear (LP) polarization Optical (PET) (OPET) Singular points State of polarization (SOP) Twisted nematic (TN) liquid crystals Polarization In this work we analyze the diffraction pattern generated by a four quadrant polarization mask. Different quadrants transmit different linear polarizations. We show that the diffraction pattern, in the absence of analyzer, shows the intensity distribution characteristic from a square aperture, but the state of polarization is not uniform. In particular, we demonstrate that an array of singular points (polarization vortices) is being generated. When an analyzer is placed behind the polarization diffractive mask, the intensity of the diffracted field is changed as the analyzer rotates. Experimental verification is performed with a twisted nematic liquid crystal display. Fil:Iemmi, C. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. CONF info:eu-repo/semantics/openAccess http://creativecommons.org/licenses/by/2.5/ar http://hdl.handle.net/20.500.12110/paper_0277786X_v7000_n_p_Moreno
institution Universidad de Buenos Aires
institution_str I-28
repository_str R-134
collection Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA)
topic Jones matrices
Liquid crystal displays
Optical diffractive elements
Optical vortices
Polarization
Computer graphics
Diffraction
Diffraction gratings
Diffraction patterns
Digital arithmetic
Digital image storage
Holographic interferometry
Image processing
Imaging systems
Imaging techniques
Interferometry
Light sources
Liquid crystal displays
Liquid crystals
Nematic liquid crystals
Optical data processing
Vortex flow
Diffracted field
Digital image processing
Experimental verification
Four quadrants
Intensity distributions
Linear (LP) polarization
Optical (PET) (OPET)
Singular points
State of polarization (SOP)
Twisted nematic (TN) liquid crystals
Polarization
spellingShingle Jones matrices
Liquid crystal displays
Optical diffractive elements
Optical vortices
Polarization
Computer graphics
Diffraction
Diffraction gratings
Diffraction patterns
Digital arithmetic
Digital image storage
Holographic interferometry
Image processing
Imaging systems
Imaging techniques
Interferometry
Light sources
Liquid crystal displays
Liquid crystals
Nematic liquid crystals
Optical data processing
Vortex flow
Diffracted field
Digital image processing
Experimental verification
Four quadrants
Intensity distributions
Linear (LP) polarization
Optical (PET) (OPET)
Singular points
State of polarization (SOP)
Twisted nematic (TN) liquid crystals
Polarization
Moreno, I.
Iemmi, C.
Campos, J.
Yzuel, M.J.
Vargas, A.
Analysis of polarization vortices generated from a polarization diffractive mask
topic_facet Jones matrices
Liquid crystal displays
Optical diffractive elements
Optical vortices
Polarization
Computer graphics
Diffraction
Diffraction gratings
Diffraction patterns
Digital arithmetic
Digital image storage
Holographic interferometry
Image processing
Imaging systems
Imaging techniques
Interferometry
Light sources
Liquid crystal displays
Liquid crystals
Nematic liquid crystals
Optical data processing
Vortex flow
Diffracted field
Digital image processing
Experimental verification
Four quadrants
Intensity distributions
Linear (LP) polarization
Optical (PET) (OPET)
Singular points
State of polarization (SOP)
Twisted nematic (TN) liquid crystals
Polarization
description In this work we analyze the diffraction pattern generated by a four quadrant polarization mask. Different quadrants transmit different linear polarizations. We show that the diffraction pattern, in the absence of analyzer, shows the intensity distribution characteristic from a square aperture, but the state of polarization is not uniform. In particular, we demonstrate that an array of singular points (polarization vortices) is being generated. When an analyzer is placed behind the polarization diffractive mask, the intensity of the diffracted field is changed as the analyzer rotates. Experimental verification is performed with a twisted nematic liquid crystal display.
format CONF
author Moreno, I.
Iemmi, C.
Campos, J.
Yzuel, M.J.
Vargas, A.
author_facet Moreno, I.
Iemmi, C.
Campos, J.
Yzuel, M.J.
Vargas, A.
author_sort Moreno, I.
title Analysis of polarization vortices generated from a polarization diffractive mask
title_short Analysis of polarization vortices generated from a polarization diffractive mask
title_full Analysis of polarization vortices generated from a polarization diffractive mask
title_fullStr Analysis of polarization vortices generated from a polarization diffractive mask
title_full_unstemmed Analysis of polarization vortices generated from a polarization diffractive mask
title_sort analysis of polarization vortices generated from a polarization diffractive mask
url http://hdl.handle.net/20.500.12110/paper_0277786X_v7000_n_p_Moreno
work_keys_str_mv AT morenoi analysisofpolarizationvorticesgeneratedfromapolarizationdiffractivemask
AT iemmic analysisofpolarizationvorticesgeneratedfromapolarizationdiffractivemask
AT camposj analysisofpolarizationvorticesgeneratedfromapolarizationdiffractivemask
AT yzuelmj analysisofpolarizationvorticesgeneratedfromapolarizationdiffractivemask
AT vargasa analysisofpolarizationvorticesgeneratedfromapolarizationdiffractivemask
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