Sub-wavelength terahertz imaging through optical rectification

We record a sub-wavelength terahertz image of a caster sugar grain thanks to optical rectification in the sample excited with a femtosecond laser beam. The lateral spatial resolution of this technique is given by the laser spot size at the sample and here its measured value is 50 μm, i.e. ~λ/12. We...

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Detalles Bibliográficos
Autores principales: Sanjuan, Federico, Gaborit, Gwenaël, Coutaz, Jean-Louis
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Nature Publishing Group UK 2018
Materias:
Article
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6131247/
https://www.ncbi.nlm.nih.gov/pubmed/30202106
http://dx.doi.org/10.1038/s41598-018-31970-w
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author Sanjuan, Federico
Gaborit, Gwenaël
Coutaz, Jean-Louis
author_facet Sanjuan, Federico
Gaborit, Gwenaël
Coutaz, Jean-Louis
author_sort Sanjuan, Federico
collection PubMed
description We record a sub-wavelength terahertz image of a caster sugar grain thanks to optical rectification in the sample excited with a femtosecond laser beam. The lateral spatial resolution of this technique is given by the laser spot size at the sample and here its measured value is 50 μm, i.e. ~λ/12. We give an estimation of the ultimate resolution that could be achieved with this method.
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spelling pubmed-61312472018-09-13 Sub-wavelength terahertz imaging through optical rectification Sanjuan, Federico Gaborit, Gwenaël Coutaz, Jean-Louis Sci Rep Article We record a sub-wavelength terahertz image of a caster sugar grain thanks to optical rectification in the sample excited with a femtosecond laser beam. The lateral spatial resolution of this technique is given by the laser spot size at the sample and here its measured value is 50 μm, i.e. ~λ/12. We give an estimation of the ultimate resolution that could be achieved with this method. Nature Publishing Group UK 2018-09-10 /pmc/articles/PMC6131247/ /pubmed/30202106 http://dx.doi.org/10.1038/s41598-018-31970-w Text en © The Author(s) 2018 Open Access This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in a credit line to the material. If material is not included in the article’s Creative Commons license and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/.
spellingShingle Article
Sanjuan, Federico
Gaborit, Gwenaël
Coutaz, Jean-Louis
Sub-wavelength terahertz imaging through optical rectification
title Sub-wavelength terahertz imaging through optical rectification
title_full Sub-wavelength terahertz imaging through optical rectification
title_fullStr Sub-wavelength terahertz imaging through optical rectification
title_full_unstemmed Sub-wavelength terahertz imaging through optical rectification
title_short Sub-wavelength terahertz imaging through optical rectification
title_sort sub-wavelength terahertz imaging through optical rectification
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6131247/
https://www.ncbi.nlm.nih.gov/pubmed/30202106
http://dx.doi.org/10.1038/s41598-018-31970-w
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