Far field superlensing inside biological media through a nanorod lens using spatiotemporal information

Abstract Far field superlensing of light has generated great attention in optical focusing and imaging applications. The capability of metamaterials to convert evanescent waves to propagative waves has led to numerous proposals in this regard. The common drawback of these approaches is their poor pe...

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Autores principales:	Mohamad J. Hajiahmadi, Reza Faraji-Dana, Anja K. Skrivervik
Formato:	article
Lenguaje:	EN
Publicado:	Nature Portfolio 2021
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/30dec3ea60b34c00bb21c00412a7d312
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spelling	oai:doaj.org-article:30dec3ea60b34c00bb21c00412a7d3122021-12-02T10:49:11ZFar field superlensing inside biological media through a nanorod lens using spatiotemporal information10.1038/s41598-021-81091-02045-2322https://doaj.org/article/30dec3ea60b34c00bb21c00412a7d3122021-01-01T00:00:00Zhttps://doi.org/10.1038/s41598-021-81091-0https://doaj.org/toc/2045-2322Abstract Far field superlensing of light has generated great attention in optical focusing and imaging applications. The capability of metamaterials to convert evanescent waves to propagative waves has led to numerous proposals in this regard. The common drawback of these approaches is their poor performance inside strongly scattering media like biological samples. Here, we use a metamaterial structure made out of aluminum nanorods in conjunction with time-reversal technique to exploit all temporal and spatial degrees of freedom for superlensing. Using broadband optics, we numerically show that this structure can perform focusing inside biological tissues with a resolution of λ/10. Moreover, for the imaging scheme we propose the entropy criterion for the image reconstruction step to reduce the number of required optical transducers. We propose an imaging scenario to reconstruct the spreading pattern of a diffusive material inside a tissue. In this way super-resolution images are obtained.Mohamad J. HajiahmadiReza Faraji-DanaAnja K. SkrivervikNature PortfolioarticleMedicineRScienceQENScientific Reports, Vol 11, Iss 1, Pp 1-8 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Mohamad J. Hajiahmadi Reza Faraji-Dana Anja K. Skrivervik Far field superlensing inside biological media through a nanorod lens using spatiotemporal information
description	Abstract Far field superlensing of light has generated great attention in optical focusing and imaging applications. The capability of metamaterials to convert evanescent waves to propagative waves has led to numerous proposals in this regard. The common drawback of these approaches is their poor performance inside strongly scattering media like biological samples. Here, we use a metamaterial structure made out of aluminum nanorods in conjunction with time-reversal technique to exploit all temporal and spatial degrees of freedom for superlensing. Using broadband optics, we numerically show that this structure can perform focusing inside biological tissues with a resolution of λ/10. Moreover, for the imaging scheme we propose the entropy criterion for the image reconstruction step to reduce the number of required optical transducers. We propose an imaging scenario to reconstruct the spreading pattern of a diffusive material inside a tissue. In this way super-resolution images are obtained.
format	article
author	Mohamad J. Hajiahmadi Reza Faraji-Dana Anja K. Skrivervik
author_facet	Mohamad J. Hajiahmadi Reza Faraji-Dana Anja K. Skrivervik
author_sort	Mohamad J. Hajiahmadi
title	Far field superlensing inside biological media through a nanorod lens using spatiotemporal information
title_short	Far field superlensing inside biological media through a nanorod lens using spatiotemporal information
title_full	Far field superlensing inside biological media through a nanorod lens using spatiotemporal information
title_fullStr	Far field superlensing inside biological media through a nanorod lens using spatiotemporal information
title_full_unstemmed	Far field superlensing inside biological media through a nanorod lens using spatiotemporal information
title_sort	far field superlensing inside biological media through a nanorod lens using spatiotemporal information
publisher	Nature Portfolio
publishDate	2021
url	https://doaj.org/article/30dec3ea60b34c00bb21c00412a7d312
work_keys_str_mv	AT mohamadjhajiahmadi farfieldsuperlensinginsidebiologicalmediathroughananorodlensusingspatiotemporalinformation AT rezafarajidana farfieldsuperlensinginsidebiologicalmediathroughananorodlensusingspatiotemporalinformation AT anjakskrivervik farfieldsuperlensinginsidebiologicalmediathroughananorodlensusingspatiotemporalinformation
_version_	1718396580603625472

Far field superlensing inside biological media through a nanorod lens using spatiotemporal information

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