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Multi-wave-mixing-induced nonlinear modulation of diffraction peaks in an opto-atomic grating
We propose an atomic model in close-loop configuration, which exhibits controllable symmetric and asymmetric evolution of significantly enhanced diffraction peaks of the weak probe beam in an opto-atomic grating at far-field regime. Such results are obtained by the linear and nonlinear modulation of...
Autores principales: | , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
Nature Publishing Group UK
2020
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7545104/ https://www.ncbi.nlm.nih.gov/pubmed/33033369 http://dx.doi.org/10.1038/s41598-020-73825-3 |
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author | Dutta, Bibhas Kumar Panchadhyayee, Pradipta Bayal, Indranil Mahapatra, Prasanta Kumar Das, Nityananda |
author_facet | Dutta, Bibhas Kumar Panchadhyayee, Pradipta Bayal, Indranil Mahapatra, Prasanta Kumar Das, Nityananda |
author_sort | Dutta, Bibhas Kumar |
collection | PubMed |
description | We propose an atomic model in close-loop configuration, which exhibits controllable symmetric and asymmetric evolution of significantly enhanced diffraction peaks of the weak probe beam in an opto-atomic grating at far-field regime. Such results are obtained by the linear and nonlinear modulation of the intensities of the diffraction peaks as a result of multi-wave-mixing-induced modification of spatially modulated coherence in a closed four-level atomic system. Novelty of the results lies in predicting the diffraction pattern with uniform peak height due to the dominance of the amplitude part of the grating-transfer-function at the condition of exact atom-field resonance, which is unique to the present model. Efficacy of the present scheme is to apply it in producing nonlinear light generated by four-wave-mixing-induced control of spatially modulated coherence effect. The work also finds its importance for its applicability in the field of all-optical devices. |
format | Online Article Text |
id | pubmed-7545104 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2020 |
publisher | Nature Publishing Group UK |
record_format | MEDLINE/PubMed |
spelling | pubmed-75451042020-10-14 Multi-wave-mixing-induced nonlinear modulation of diffraction peaks in an opto-atomic grating Dutta, Bibhas Kumar Panchadhyayee, Pradipta Bayal, Indranil Mahapatra, Prasanta Kumar Das, Nityananda Sci Rep Article We propose an atomic model in close-loop configuration, which exhibits controllable symmetric and asymmetric evolution of significantly enhanced diffraction peaks of the weak probe beam in an opto-atomic grating at far-field regime. Such results are obtained by the linear and nonlinear modulation of the intensities of the diffraction peaks as a result of multi-wave-mixing-induced modification of spatially modulated coherence in a closed four-level atomic system. Novelty of the results lies in predicting the diffraction pattern with uniform peak height due to the dominance of the amplitude part of the grating-transfer-function at the condition of exact atom-field resonance, which is unique to the present model. Efficacy of the present scheme is to apply it in producing nonlinear light generated by four-wave-mixing-induced control of spatially modulated coherence effect. The work also finds its importance for its applicability in the field of all-optical devices. Nature Publishing Group UK 2020-10-08 /pmc/articles/PMC7545104/ /pubmed/33033369 http://dx.doi.org/10.1038/s41598-020-73825-3 Text en © The Author(s) 2020 Open AccessThis 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 licence, and indicate if changes were made. The images or other third party material in this article are included in the article's Creative Commons licence, unless indicated otherwise in a credit line to the material. If material is not included in the article's Creative Commons licence 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 licence, visit http://creativecommons.org/licenses/by/4.0/. |
spellingShingle | Article Dutta, Bibhas Kumar Panchadhyayee, Pradipta Bayal, Indranil Mahapatra, Prasanta Kumar Das, Nityananda Multi-wave-mixing-induced nonlinear modulation of diffraction peaks in an opto-atomic grating |
title | Multi-wave-mixing-induced nonlinear modulation of diffraction peaks in an opto-atomic grating |
title_full | Multi-wave-mixing-induced nonlinear modulation of diffraction peaks in an opto-atomic grating |
title_fullStr | Multi-wave-mixing-induced nonlinear modulation of diffraction peaks in an opto-atomic grating |
title_full_unstemmed | Multi-wave-mixing-induced nonlinear modulation of diffraction peaks in an opto-atomic grating |
title_short | Multi-wave-mixing-induced nonlinear modulation of diffraction peaks in an opto-atomic grating |
title_sort | multi-wave-mixing-induced nonlinear modulation of diffraction peaks in an opto-atomic grating |
topic | Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7545104/ https://www.ncbi.nlm.nih.gov/pubmed/33033369 http://dx.doi.org/10.1038/s41598-020-73825-3 |
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