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Microwave-induced orbital angular momentum transfer

The microwave-induced orbital angular momentum (OAM) transfer from a Laguerre-Gaussian (LG) beam to a weak plane-wave is studied in a closed-loop four-level ladder-type atomic system. The analytical investigation shows that the generated fourth field is an LG beam with the same OAM of the applied LG...

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Autores principales: Amini Sabegh, Zahra, Maleki, Mohammad Ali, Mahmoudi, Mohammad
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Nature Publishing Group UK 2019
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6400969/
https://www.ncbi.nlm.nih.gov/pubmed/30837623
http://dx.doi.org/10.1038/s41598-019-40195-4
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author Amini Sabegh, Zahra
Maleki, Mohammad Ali
Mahmoudi, Mohammad
author_facet Amini Sabegh, Zahra
Maleki, Mohammad Ali
Mahmoudi, Mohammad
author_sort Amini Sabegh, Zahra
collection PubMed
description The microwave-induced orbital angular momentum (OAM) transfer from a Laguerre-Gaussian (LG) beam to a weak plane-wave is studied in a closed-loop four-level ladder-type atomic system. The analytical investigation shows that the generated fourth field is an LG beam with the same OAM of the applied LG field. Moreover, the microwave-induced subluminal generated pulse can be switched to the superluminal one only by changing the relative phase of applied fields. It is shown that the OAM transfer in subluminal regime is accompanied by a slightly absorption, however, it switches to the slightly gain in superluminal regime. The transfer of light’s OAM and control of the group velocity of the generated pulse can prepare a high-dimensional Hilbert space which has a major role in quantum communication and information processing.
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spelling pubmed-64009692019-03-07 Microwave-induced orbital angular momentum transfer Amini Sabegh, Zahra Maleki, Mohammad Ali Mahmoudi, Mohammad Sci Rep Article The microwave-induced orbital angular momentum (OAM) transfer from a Laguerre-Gaussian (LG) beam to a weak plane-wave is studied in a closed-loop four-level ladder-type atomic system. The analytical investigation shows that the generated fourth field is an LG beam with the same OAM of the applied LG field. Moreover, the microwave-induced subluminal generated pulse can be switched to the superluminal one only by changing the relative phase of applied fields. It is shown that the OAM transfer in subluminal regime is accompanied by a slightly absorption, however, it switches to the slightly gain in superluminal regime. The transfer of light’s OAM and control of the group velocity of the generated pulse can prepare a high-dimensional Hilbert space which has a major role in quantum communication and information processing. Nature Publishing Group UK 2019-03-05 /pmc/articles/PMC6400969/ /pubmed/30837623 http://dx.doi.org/10.1038/s41598-019-40195-4 Text en © The Author(s) 2019 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
Amini Sabegh, Zahra
Maleki, Mohammad Ali
Mahmoudi, Mohammad
Microwave-induced orbital angular momentum transfer
title Microwave-induced orbital angular momentum transfer
title_full Microwave-induced orbital angular momentum transfer
title_fullStr Microwave-induced orbital angular momentum transfer
title_full_unstemmed Microwave-induced orbital angular momentum transfer
title_short Microwave-induced orbital angular momentum transfer
title_sort microwave-induced orbital angular momentum transfer
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6400969/
https://www.ncbi.nlm.nih.gov/pubmed/30837623
http://dx.doi.org/10.1038/s41598-019-40195-4
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