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Spatially structured multi-wave-mixing induced nonlinear absorption and gain in a semiconductor quantum well

We have studied two-dimensional absorption and gain spectrum in an asymmetric semiconductor triple-coupled-quantum-well (TCQW) nanostructure. Four subband transitions are coupled by using four coherent fields in a close-loop configuration to introduce cross-Kerr effect and four-wave-mixing (FWM) ind...

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Autores principales: Panchadhyayee, Pradipta, Dutta, Bibhas Kumar
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Nature Publishing Group UK 2022
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9792544/
https://www.ncbi.nlm.nih.gov/pubmed/36572722
http://dx.doi.org/10.1038/s41598-022-26140-y
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author Panchadhyayee, Pradipta
Dutta, Bibhas Kumar
author_facet Panchadhyayee, Pradipta
Dutta, Bibhas Kumar
author_sort Panchadhyayee, Pradipta
collection PubMed
description We have studied two-dimensional absorption and gain spectrum in an asymmetric semiconductor triple-coupled-quantum-well (TCQW) nanostructure. Four subband transitions are coupled by using four coherent fields in a close-loop configuration to introduce cross-Kerr effect and four-wave-mixing (FWM) induced nonlinearity in achieving nonlinear absorption and gain profiles. Position-dependent absorption and gain are obtained by applying one, or two coherent fields in a variety of standing wave configurations including superposed field configuration in the standing-wave regime. In addition to the control parameters like Rabi frequency and detuning, the specialty of the model is to employ double-controlled spatial phase-coherence guided by the FWM-induced phase and the phases introduced by the standing wave formation. Our results highlight the high-precision electron localization in spatial domain. The evolution of spatially modulated gain without inversion may be a substitute for obtaining gain from a traditional quantum cascade laser. The importance of the present work is to find its application in designing electro-optic modulators in semiconductor nanostructures in near future.
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spelling pubmed-97925442022-12-28 Spatially structured multi-wave-mixing induced nonlinear absorption and gain in a semiconductor quantum well Panchadhyayee, Pradipta Dutta, Bibhas Kumar Sci Rep Article We have studied two-dimensional absorption and gain spectrum in an asymmetric semiconductor triple-coupled-quantum-well (TCQW) nanostructure. Four subband transitions are coupled by using four coherent fields in a close-loop configuration to introduce cross-Kerr effect and four-wave-mixing (FWM) induced nonlinearity in achieving nonlinear absorption and gain profiles. Position-dependent absorption and gain are obtained by applying one, or two coherent fields in a variety of standing wave configurations including superposed field configuration in the standing-wave regime. In addition to the control parameters like Rabi frequency and detuning, the specialty of the model is to employ double-controlled spatial phase-coherence guided by the FWM-induced phase and the phases introduced by the standing wave formation. Our results highlight the high-precision electron localization in spatial domain. The evolution of spatially modulated gain without inversion may be a substitute for obtaining gain from a traditional quantum cascade laser. The importance of the present work is to find its application in designing electro-optic modulators in semiconductor nanostructures in near future. Nature Publishing Group UK 2022-12-26 /pmc/articles/PMC9792544/ /pubmed/36572722 http://dx.doi.org/10.1038/s41598-022-26140-y Text en © The Author(s) 2022 https://creativecommons.org/licenses/by/4.0/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/ (https://creativecommons.org/licenses/by/4.0/) .
spellingShingle Article
Panchadhyayee, Pradipta
Dutta, Bibhas Kumar
Spatially structured multi-wave-mixing induced nonlinear absorption and gain in a semiconductor quantum well
title Spatially structured multi-wave-mixing induced nonlinear absorption and gain in a semiconductor quantum well
title_full Spatially structured multi-wave-mixing induced nonlinear absorption and gain in a semiconductor quantum well
title_fullStr Spatially structured multi-wave-mixing induced nonlinear absorption and gain in a semiconductor quantum well
title_full_unstemmed Spatially structured multi-wave-mixing induced nonlinear absorption and gain in a semiconductor quantum well
title_short Spatially structured multi-wave-mixing induced nonlinear absorption and gain in a semiconductor quantum well
title_sort spatially structured multi-wave-mixing induced nonlinear absorption and gain in a semiconductor quantum well
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9792544/
https://www.ncbi.nlm.nih.gov/pubmed/36572722
http://dx.doi.org/10.1038/s41598-022-26140-y
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