Speckle patterns formed by broadband terahertz radiation and their applications for ghost imaging

Abstract Speckle patterns can be very promising for many applications due to their unique properties. This paper presents the possibility of numerically and experimentally formation of speckle patterns using broadband THz radiation. Strong dependence of the statistical parameters of speckles, such a...

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Autores principales:	Lev Leibov, Azat Ismagilov, Victor Zalipaev, Boris Nasedkin, Yaroslav Grachev, Nikolay Petrov, Anton Tcypkin
Formato:	article
Lenguaje:	EN
Publicado:	Nature Portfolio 2021
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/3ca91ae69ef04cab8b686179dcbb4561
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spelling	oai:doaj.org-article:3ca91ae69ef04cab8b686179dcbb45612021-12-02T17:13:17ZSpeckle patterns formed by broadband terahertz radiation and their applications for ghost imaging10.1038/s41598-021-99508-12045-2322https://doaj.org/article/3ca91ae69ef04cab8b686179dcbb45612021-10-01T00:00:00Zhttps://doi.org/10.1038/s41598-021-99508-1https://doaj.org/toc/2045-2322Abstract Speckle patterns can be very promising for many applications due to their unique properties. This paper presents the possibility of numerically and experimentally formation of speckle patterns using broadband THz radiation. Strong dependence of the statistical parameters of speckles, such as size and sharpness on the parameters of the diffuser are demonstrated: the correlation length and the mean square deviation of the phase surface inhomogeneity. As the surface correlation length is increasing, the speckle size also increases and its sharpness goes down. Alternatively, the magnification of the standard deviation of the surface height leads to the speckle size diminishing and growth of the speckle sharpness. The dimensions of the experimentally formed speckles correspond to the results of numerical simulation. The possibility of utilizing formed speckle patterns for the implementation of the ghost imaging technique has been demonstrated by methods of numerical modeling.Lev LeibovAzat IsmagilovVictor ZalipaevBoris NasedkinYaroslav GrachevNikolay PetrovAnton TcypkinNature PortfolioarticleMedicineRScienceQENScientific Reports, Vol 11, Iss 1, Pp 1-10 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Lev Leibov Azat Ismagilov Victor Zalipaev Boris Nasedkin Yaroslav Grachev Nikolay Petrov Anton Tcypkin Speckle patterns formed by broadband terahertz radiation and their applications for ghost imaging
description	Abstract Speckle patterns can be very promising for many applications due to their unique properties. This paper presents the possibility of numerically and experimentally formation of speckle patterns using broadband THz radiation. Strong dependence of the statistical parameters of speckles, such as size and sharpness on the parameters of the diffuser are demonstrated: the correlation length and the mean square deviation of the phase surface inhomogeneity. As the surface correlation length is increasing, the speckle size also increases and its sharpness goes down. Alternatively, the magnification of the standard deviation of the surface height leads to the speckle size diminishing and growth of the speckle sharpness. The dimensions of the experimentally formed speckles correspond to the results of numerical simulation. The possibility of utilizing formed speckle patterns for the implementation of the ghost imaging technique has been demonstrated by methods of numerical modeling.
format	article
author	Lev Leibov Azat Ismagilov Victor Zalipaev Boris Nasedkin Yaroslav Grachev Nikolay Petrov Anton Tcypkin
author_facet	Lev Leibov Azat Ismagilov Victor Zalipaev Boris Nasedkin Yaroslav Grachev Nikolay Petrov Anton Tcypkin
author_sort	Lev Leibov
title	Speckle patterns formed by broadband terahertz radiation and their applications for ghost imaging
title_short	Speckle patterns formed by broadband terahertz radiation and their applications for ghost imaging
title_full	Speckle patterns formed by broadband terahertz radiation and their applications for ghost imaging
title_fullStr	Speckle patterns formed by broadband terahertz radiation and their applications for ghost imaging
title_full_unstemmed	Speckle patterns formed by broadband terahertz radiation and their applications for ghost imaging
title_sort	speckle patterns formed by broadband terahertz radiation and their applications for ghost imaging
publisher	Nature Portfolio
publishDate	2021
url	https://doaj.org/article/3ca91ae69ef04cab8b686179dcbb4561
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Speckle patterns formed by broadband terahertz radiation and their applications for ghost imaging

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