Polarization imaging with enhanced spatial resolution

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We present the design and the experimental implementation of a new imaging set-up, based on Liquid Crystal technology, able to obtain super-resolved polarimetric images of polarimetric samples when the resolution is detector limited. The proposed set-up is a combination of two modules. One of them i...

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Autor principal:	Iemmi, Claudio César
Publicado:	2015
Materias:	Liquid-crystal devices Polarimetry Spatial light modulators Stokes vector Superresolution Light modulators Liquid crystal displays Liquid crystals Liquids Nematic liquid crystals Optical systems Pixels Polarimeters Polarization Ferroelectric liquid crystal Liquid crystal devices Liquid crystal on silicon displays Liquid crystal technology Sub-pixel displacements Super resolution Image resolution
Acceso en línea:	https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_00304018_v338_n_p95_Peinado http://hdl.handle.net/20.500.12110/paper_00304018_v338_n_p95_Peinado
Aporte de:	Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) de Universidad de Buenos Aires

id	paper:paper_00304018_v338_n_p95_Peinado
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spelling	paper:paper_00304018_v338_n_p95_Peinado2025-07-30T17:37:38Z Polarization imaging with enhanced spatial resolution Iemmi, Claudio César Liquid-crystal devices Polarimetry Spatial light modulators Stokes vector Superresolution Light modulators Liquid crystal displays Liquid crystals Liquids Nematic liquid crystals Optical systems Pixels Polarimeters Polarization Ferroelectric liquid crystal Liquid crystal devices Liquid crystal on silicon displays Liquid crystal technology Spatial light modulators Stokes vector Sub-pixel displacements Super resolution Image resolution We present the design and the experimental implementation of a new imaging set-up, based on Liquid Crystal technology, able to obtain super-resolved polarimetric images of polarimetric samples when the resolution is detector limited. The proposed set-up is a combination of two modules. One of them is an imaging Stokes polarimeter, based on Ferroelectric Liquid Crystal cells, which is used to analyze the polarization spatial distribution of an incident beam. The other module is used to obtain high resolved intensity images of the sample in an optical system whose resolution is mainly limited by the CCD pixel geometry. It contains a calibrated Parallel Aligned Liquid Crystal on Silicon display employed to introduce controlled linear phases. As a result, a set of different low resolved intensity images with sub-pixel displacements are captured by the CCD. By properly combining these images and after applying a deconvolution process, a super-resolved intensity image of the object is obtained. Finally, the combination of the two different optical modules permits to employ super-resolved images during the polarimetric data reduction calculation, leading to a final polarization image with enhanced spatial resolution. The proposed optical set-up performance is implemented and experimentally validated by providing super-resolved images of an amplitude resolution test and a birefringent resolution test. A significant improvement in the spatial resolution (by a factor of 1.4) of the obtained polarimetric images, in comparison with the images obtained with the regular imaging system, is clearly observed when applying our proposed technique. © 2014 Elsevier B.V. Fil:Iemmi, C. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. 2015 https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_00304018_v338_n_p95_Peinado http://hdl.handle.net/20.500.12110/paper_00304018_v338_n_p95_Peinado
institution	Universidad de Buenos Aires
institution_str	I-28
repository_str	R-134
collection	Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA)
topic	Liquid-crystal devices Polarimetry Spatial light modulators Stokes vector Superresolution Light modulators Liquid crystal displays Liquid crystals Liquids Nematic liquid crystals Optical systems Pixels Polarimeters Polarization Ferroelectric liquid crystal Liquid crystal devices Liquid crystal on silicon displays Liquid crystal technology Spatial light modulators Stokes vector Sub-pixel displacements Super resolution Image resolution
spellingShingle	Liquid-crystal devices Polarimetry Spatial light modulators Stokes vector Superresolution Light modulators Liquid crystal displays Liquid crystals Liquids Nematic liquid crystals Optical systems Pixels Polarimeters Polarization Ferroelectric liquid crystal Liquid crystal devices Liquid crystal on silicon displays Liquid crystal technology Spatial light modulators Stokes vector Sub-pixel displacements Super resolution Image resolution Iemmi, Claudio César Polarization imaging with enhanced spatial resolution
topic_facet	Liquid-crystal devices Polarimetry Spatial light modulators Stokes vector Superresolution Light modulators Liquid crystal displays Liquid crystals Liquids Nematic liquid crystals Optical systems Pixels Polarimeters Polarization Ferroelectric liquid crystal Liquid crystal devices Liquid crystal on silicon displays Liquid crystal technology Spatial light modulators Stokes vector Sub-pixel displacements Super resolution Image resolution
description	We present the design and the experimental implementation of a new imaging set-up, based on Liquid Crystal technology, able to obtain super-resolved polarimetric images of polarimetric samples when the resolution is detector limited. The proposed set-up is a combination of two modules. One of them is an imaging Stokes polarimeter, based on Ferroelectric Liquid Crystal cells, which is used to analyze the polarization spatial distribution of an incident beam. The other module is used to obtain high resolved intensity images of the sample in an optical system whose resolution is mainly limited by the CCD pixel geometry. It contains a calibrated Parallel Aligned Liquid Crystal on Silicon display employed to introduce controlled linear phases. As a result, a set of different low resolved intensity images with sub-pixel displacements are captured by the CCD. By properly combining these images and after applying a deconvolution process, a super-resolved intensity image of the object is obtained. Finally, the combination of the two different optical modules permits to employ super-resolved images during the polarimetric data reduction calculation, leading to a final polarization image with enhanced spatial resolution. The proposed optical set-up performance is implemented and experimentally validated by providing super-resolved images of an amplitude resolution test and a birefringent resolution test. A significant improvement in the spatial resolution (by a factor of 1.4) of the obtained polarimetric images, in comparison with the images obtained with the regular imaging system, is clearly observed when applying our proposed technique. © 2014 Elsevier B.V.
author	Iemmi, Claudio César
author_facet	Iemmi, Claudio César
author_sort	Iemmi, Claudio César
title	Polarization imaging with enhanced spatial resolution
title_short	Polarization imaging with enhanced spatial resolution
title_full	Polarization imaging with enhanced spatial resolution
title_fullStr	Polarization imaging with enhanced spatial resolution
title_full_unstemmed	Polarization imaging with enhanced spatial resolution
title_sort	polarization imaging with enhanced spatial resolution
publishDate	2015
url	https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_00304018_v338_n_p95_Peinado http://hdl.handle.net/20.500.12110/paper_00304018_v338_n_p95_Peinado
work_keys_str_mv	AT iemmiclaudiocesar polarizationimagingwithenhancedspatialresolution
_version_	1840325170979405824

Polarization imaging with enhanced spatial resolution

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