Optically Tunable Gratings Based on Coherent Population Oscillation

Abstract We theoretically study the optically tunable gratings based on a L-type atomic medium using coherent population oscillations from the angle of reflection and transmission of the probe field. Adopting a standing-wave driving field, the refractive index of the medium as well as the absorption...

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Autores principales:	Xiao-Jun Zhang, Hai-Hua Wang, Lei Wang, Jin-Hui Wu
Formato:	article
Lenguaje:	EN
Publicado:	Nature Portfolio 2018
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/4b3179df9cf84bd4afa416fc9804b2b1
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spelling	oai:doaj.org-article:4b3179df9cf84bd4afa416fc9804b2b12021-12-02T12:32:09ZOptically Tunable Gratings Based on Coherent Population Oscillation10.1038/s41598-018-25010-w2045-2322https://doaj.org/article/4b3179df9cf84bd4afa416fc9804b2b12018-05-01T00:00:00Zhttps://doi.org/10.1038/s41598-018-25010-whttps://doaj.org/toc/2045-2322Abstract We theoretically study the optically tunable gratings based on a L-type atomic medium using coherent population oscillations from the angle of reflection and transmission of the probe field. Adopting a standing-wave driving field, the refractive index of the medium as well as the absorption are periodically modified. Consequently, the Bragg scattering causes the effective reflection. We show that different intensities of the control field lead to three types of reflection profile which actually correspond to different absorption/amplification features of the medium. We present a detailed analyses about the influence of amplification on the reflection profile as well. The coherent population oscillation is robust to the dephasing effect, and such induced gratings could have promising applications in nonlinear optics and all-optical information processing.Xiao-Jun ZhangHai-Hua WangLei WangJin-Hui WuNature PortfolioarticleMedicineRScienceQENScientific Reports, Vol 8, Iss 1, Pp 1-11 (2018)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Xiao-Jun Zhang Hai-Hua Wang Lei Wang Jin-Hui Wu Optically Tunable Gratings Based on Coherent Population Oscillation
description	Abstract We theoretically study the optically tunable gratings based on a L-type atomic medium using coherent population oscillations from the angle of reflection and transmission of the probe field. Adopting a standing-wave driving field, the refractive index of the medium as well as the absorption are periodically modified. Consequently, the Bragg scattering causes the effective reflection. We show that different intensities of the control field lead to three types of reflection profile which actually correspond to different absorption/amplification features of the medium. We present a detailed analyses about the influence of amplification on the reflection profile as well. The coherent population oscillation is robust to the dephasing effect, and such induced gratings could have promising applications in nonlinear optics and all-optical information processing.
format	article
author	Xiao-Jun Zhang Hai-Hua Wang Lei Wang Jin-Hui Wu
author_facet	Xiao-Jun Zhang Hai-Hua Wang Lei Wang Jin-Hui Wu
author_sort	Xiao-Jun Zhang
title	Optically Tunable Gratings Based on Coherent Population Oscillation
title_short	Optically Tunable Gratings Based on Coherent Population Oscillation
title_full	Optically Tunable Gratings Based on Coherent Population Oscillation
title_fullStr	Optically Tunable Gratings Based on Coherent Population Oscillation
title_full_unstemmed	Optically Tunable Gratings Based on Coherent Population Oscillation
title_sort	optically tunable gratings based on coherent population oscillation
publisher	Nature Portfolio
publishDate	2018
url	https://doaj.org/article/4b3179df9cf84bd4afa416fc9804b2b1
work_keys_str_mv	AT xiaojunzhang opticallytunablegratingsbasedoncoherentpopulationoscillation AT haihuawang opticallytunablegratingsbasedoncoherentpopulationoscillation AT leiwang opticallytunablegratingsbasedoncoherentpopulationoscillation AT jinhuiwu opticallytunablegratingsbasedoncoherentpopulationoscillation
_version_	1718394152990801920

Optically Tunable Gratings Based on Coherent Population Oscillation

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