Spatially modulated thermal light in atomic medium for enhanced ghost imaging

Abstract Recent years have seen vast progress in image modulation based on atomic media, with potential applications in both classical optical imaging and quantum imaging regions. However, there have been few investigations of how thermal light images interact with an electromagnetically induced tra...

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Autores principales:	Mingtao Cao, Jinwen Wang, Xin Yang, Shuwei Qiu, Hong Gao, Fuli Li
Formato:	article
Lenguaje:	EN
Publicado:	Nature Portfolio 2017
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/69fffed647694a34a6e35aa8c5754294
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spelling	oai:doaj.org-article:69fffed647694a34a6e35aa8c57542942021-12-02T15:05:40ZSpatially modulated thermal light in atomic medium for enhanced ghost imaging10.1038/s41598-017-08374-32045-2322https://doaj.org/article/69fffed647694a34a6e35aa8c57542942017-08-01T00:00:00Zhttps://doi.org/10.1038/s41598-017-08374-3https://doaj.org/toc/2045-2322Abstract Recent years have seen vast progress in image modulation based on atomic media, with potential applications in both classical optical imaging and quantum imaging regions. However, there have been few investigations of how thermal light images interact with an electromagnetically induced transparent medium. In this letter, we experimentally demonstrate pseudo-thermal light modulation on coherent population trapping conditions in 87 Rb vapor. By introducing the Laguerre-Gaussian beam as the control beam and the encoded speckle as the probe beam, we obtained sharper speckle patterns after the atom cell compared with that in free space. The spatially modulated thermal light was then used to enhance the image resolution in ghost imaging of which the resolution was enhanced by factor 3, since the ghost image resolution is heavily reliant on the speckle’s transverse coherent length. Our results are promising for potential applications in high resolution ghost imaging and image metrology, image processing and biomedical imaging.Mingtao CaoJinwen WangXin YangShuwei QiuHong GaoFuli LiNature PortfolioarticleMedicineRScienceQENScientific Reports, Vol 7, Iss 1, Pp 1-7 (2017)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Mingtao Cao Jinwen Wang Xin Yang Shuwei Qiu Hong Gao Fuli Li Spatially modulated thermal light in atomic medium for enhanced ghost imaging
description	Abstract Recent years have seen vast progress in image modulation based on atomic media, with potential applications in both classical optical imaging and quantum imaging regions. However, there have been few investigations of how thermal light images interact with an electromagnetically induced transparent medium. In this letter, we experimentally demonstrate pseudo-thermal light modulation on coherent population trapping conditions in 87 Rb vapor. By introducing the Laguerre-Gaussian beam as the control beam and the encoded speckle as the probe beam, we obtained sharper speckle patterns after the atom cell compared with that in free space. The spatially modulated thermal light was then used to enhance the image resolution in ghost imaging of which the resolution was enhanced by factor 3, since the ghost image resolution is heavily reliant on the speckle’s transverse coherent length. Our results are promising for potential applications in high resolution ghost imaging and image metrology, image processing and biomedical imaging.
format	article
author	Mingtao Cao Jinwen Wang Xin Yang Shuwei Qiu Hong Gao Fuli Li
author_facet	Mingtao Cao Jinwen Wang Xin Yang Shuwei Qiu Hong Gao Fuli Li
author_sort	Mingtao Cao
title	Spatially modulated thermal light in atomic medium for enhanced ghost imaging
title_short	Spatially modulated thermal light in atomic medium for enhanced ghost imaging
title_full	Spatially modulated thermal light in atomic medium for enhanced ghost imaging
title_fullStr	Spatially modulated thermal light in atomic medium for enhanced ghost imaging
title_full_unstemmed	Spatially modulated thermal light in atomic medium for enhanced ghost imaging
title_sort	spatially modulated thermal light in atomic medium for enhanced ghost imaging
publisher	Nature Portfolio
publishDate	2017
url	https://doaj.org/article/69fffed647694a34a6e35aa8c5754294
work_keys_str_mv	AT mingtaocao spatiallymodulatedthermallightinatomicmediumforenhancedghostimaging AT jinwenwang spatiallymodulatedthermallightinatomicmediumforenhancedghostimaging AT xinyang spatiallymodulatedthermallightinatomicmediumforenhancedghostimaging AT shuweiqiu spatiallymodulatedthermallightinatomicmediumforenhancedghostimaging AT honggao spatiallymodulatedthermallightinatomicmediumforenhancedghostimaging AT fulili spatiallymodulatedthermallightinatomicmediumforenhancedghostimaging
_version_	1718388770522267648

Spatially modulated thermal light in atomic medium for enhanced ghost imaging

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