{"title":"Theoretical investigation of lateral and rotary light drag by a vortex beam in graphene quantum dots","authors":"Saeideh Kevin, Ali Hamrah Gharamaleki","doi":"10.1140/epjd/s10053-024-00836-4","DOIUrl":null,"url":null,"abstract":"<div><p>A vortex beam of light is used to enhance and control the lateral and rotary light drag effects in three-level graphene quantum dots. In this study, by using a vortex beam, two practical parameters are introduced to control the optical properties of the system and consequently enhance both the lateral and rotary light drag effects. These parameters are the orbital angular momentum and the azimuthal phase of the applied controlling vortex beam. By increasing the orbital angular momentum of the vortex beam, the absorption of the probe field decreases, while the lateral and rotary light drag effects increase. Furthermore, we found that the azimuthal phase of the vortex beam has a substantial impact on the optical properties of the probe field. Thus, it can be utilized as an efficient parameter for enhancing and controlling light drag effects.</p><h3>Graphical abstract</h3><div><figure><div><div><picture><source><img></source></picture></div><div><p>Lateral light drag as a function of the medium transverse velocity. As demonstrated, increasing the amount of topological charge (l) and consequently the orbital angular momentum results in enhanced lateral light drag</p></div></div></figure></div></div>","PeriodicalId":789,"journal":{"name":"The European Physical Journal D","volume":"78 4","pages":""},"PeriodicalIF":1.5000,"publicationDate":"2024-04-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"The European Physical Journal D","FirstCategoryId":"4","ListUrlMain":"https://link.springer.com/article/10.1140/epjd/s10053-024-00836-4","RegionNum":4,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q3","JCRName":"OPTICS","Score":null,"Total":0}
引用次数: 0
Abstract
A vortex beam of light is used to enhance and control the lateral and rotary light drag effects in three-level graphene quantum dots. In this study, by using a vortex beam, two practical parameters are introduced to control the optical properties of the system and consequently enhance both the lateral and rotary light drag effects. These parameters are the orbital angular momentum and the azimuthal phase of the applied controlling vortex beam. By increasing the orbital angular momentum of the vortex beam, the absorption of the probe field decreases, while the lateral and rotary light drag effects increase. Furthermore, we found that the azimuthal phase of the vortex beam has a substantial impact on the optical properties of the probe field. Thus, it can be utilized as an efficient parameter for enhancing and controlling light drag effects.
Graphical abstract
Lateral light drag as a function of the medium transverse velocity. As demonstrated, increasing the amount of topological charge (l) and consequently the orbital angular momentum results in enhanced lateral light drag
期刊介绍：
The European Physical Journal D (EPJ D) presents new and original research results in:
Atomic Physics;
Molecular Physics and Chemical Physics;
Atomic and Molecular Collisions;
Clusters and Nanostructures;
Plasma Physics;
Laser Cooling and Quantum Gas;
Nonlinear Dynamics;
Optical Physics;
Quantum Optics and Quantum Information;
Ultraintense and Ultrashort Laser Fields.
The range of topics covered in these areas is extensive, from Molecular Interaction and Reactivity to Spectroscopy and Thermodynamics of Clusters, from Atomic Optics to Bose-Einstein Condensation to Femtochemistry.
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