Polarization imaging with enhanced spatial 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 i...
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| Acceso en línea: | http://hdl.handle.net/20.500.12110/paper_00304018_v338_n_p95_Peinado |
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todo:paper_00304018_v338_n_p95_Peinado2023-10-03T14:40:17Z Polarization imaging with enhanced spatial resolution Peinado, A. Lizana, A. Iemmi, C. Campos, J. 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. JOUR info:eu-repo/semantics/openAccess http://creativecommons.org/licenses/by/2.5/ar 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 Peinado, A. Lizana, A. Iemmi, C. Campos, J. 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. |
| format |
JOUR |
| author |
Peinado, A. Lizana, A. Iemmi, C. Campos, J. |
| author_facet |
Peinado, A. Lizana, A. Iemmi, C. Campos, J. |
| author_sort |
Peinado, A. |
| 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 |
| url |
http://hdl.handle.net/20.500.12110/paper_00304018_v338_n_p95_Peinado |
| work_keys_str_mv |
AT peinadoa polarizationimagingwithenhancedspatialresolution AT lizanaa polarizationimagingwithenhancedspatialresolution AT iemmic polarizationimagingwithenhancedspatialresolution AT camposj polarizationimagingwithenhancedspatialresolution |
| _version_ |
1782025258356703232 |