Controllable Hartman effect by vortex beam in a one dimensional photonic crystal doped by graphene quantum dots

The Hartman effect is studied in a one dimensional photonic crystal doped with graphene quantum dots. It is shown that the Hartman effect can be switched from negative to positive by increasing the Rabi-frequency of the controlling field and also by manipulating the relative phase of the applied fie...

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Autores principales: Kevin, Saeideh, Sahrai, Mostafa, Asadpour, Seyyed Hossein
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Nature Publishing Group UK 2023
Materias:
Article
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9941127/
https://www.ncbi.nlm.nih.gov/pubmed/36807388
http://dx.doi.org/10.1038/s41598-023-29891-4
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author Kevin, Saeideh
Sahrai, Mostafa
Asadpour, Seyyed Hossein
author_facet Kevin, Saeideh
Sahrai, Mostafa
Asadpour, Seyyed Hossein
author_sort Kevin, Saeideh
collection PubMed
description The Hartman effect is studied in a one dimensional photonic crystal doped with graphene quantum dots. It is shown that the Hartman effect can be switched from negative to positive by increasing the Rabi-frequency of the controlling field and also by manipulating the relative phase of the applied fields. The effect of the vortex beam on the Hartman effect is also presented. We show that the orbital angular momentum (OAM) and the azimuthal phase of the vortex beam do not affect the probe filed transmission while they change the Hartman effect from positive to negative.
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spelling pubmed-99411272023-02-22 Controllable Hartman effect by vortex beam in a one dimensional photonic crystal doped by graphene quantum dots Kevin, Saeideh Sahrai, Mostafa Asadpour, Seyyed Hossein Sci Rep Article The Hartman effect is studied in a one dimensional photonic crystal doped with graphene quantum dots. It is shown that the Hartman effect can be switched from negative to positive by increasing the Rabi-frequency of the controlling field and also by manipulating the relative phase of the applied fields. The effect of the vortex beam on the Hartman effect is also presented. We show that the orbital angular momentum (OAM) and the azimuthal phase of the vortex beam do not affect the probe filed transmission while they change the Hartman effect from positive to negative. Nature Publishing Group UK 2023-02-20 /pmc/articles/PMC9941127/ /pubmed/36807388 http://dx.doi.org/10.1038/s41598-023-29891-4 Text en © The Author(s) 2023 https://creativecommons.org/licenses/by/4.0/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 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
Kevin, Saeideh
Sahrai, Mostafa
Asadpour, Seyyed Hossein
Controllable Hartman effect by vortex beam in a one dimensional photonic crystal doped by graphene quantum dots
title Controllable Hartman effect by vortex beam in a one dimensional photonic crystal doped by graphene quantum dots
title_full Controllable Hartman effect by vortex beam in a one dimensional photonic crystal doped by graphene quantum dots
title_fullStr Controllable Hartman effect by vortex beam in a one dimensional photonic crystal doped by graphene quantum dots
title_full_unstemmed Controllable Hartman effect by vortex beam in a one dimensional photonic crystal doped by graphene quantum dots
title_short Controllable Hartman effect by vortex beam in a one dimensional photonic crystal doped by graphene quantum dots
title_sort controllable hartman effect by vortex beam in a one dimensional photonic crystal doped by graphene quantum dots
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9941127/
https://www.ncbi.nlm.nih.gov/pubmed/36807388
http://dx.doi.org/10.1038/s41598-023-29891-4
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AT asadpourseyyedhossein controllablehartmaneffectbyvortexbeaminaonedimensionalphotoniccrystaldopedbygraphenequantumdots

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