RETRACTED: Ultrahigh resolution two-dimensional atomic localization via tunable surface plasmon polaritons. (August 2021)

• Record Type: Journal Article
• Authors: Idrees, Muhammad; Ullah, Muhib; Bacha, Bakth Amin; Ullah, Arif; Wang, Li-Gang
• Is Part Of: Optics & laser technology. Volume 140(2021)
• Publication Date: 2021-08
• Subjects: Optics -- Periodicals; Lasers -- Periodicals; Electronic journals; 621.366
• DOI: 10.1016/j.optlastec.2021.107021
• Languages: English
• ISSNs: 0030-3992

Abstract

Abstract : This article has been retracted: please see Elsevier Policy on Article Withdrawal (https://www.elsevier.com/about/our-business/policies/article-withdrawal ). This article has been retracted at the request of Authors We are retracting this Article because the result is wrong for the following two crucial reasons. This article considered a nanohybrid system consisted of a core of atomic medium with dielectric constant e1 and an outer Ag metallic nanoparticle (MNP) shell with dielectric constant e2. Such nano-structures make the light fields inside the nanohybrid system highly inhomogeneous. It is impossible for the controlling fields to form the strong standing waves in such spherical shell nanostructures. Thus the Equation (1) of the modelling for the driving laser field with Rabi frequency Wc(x, y) inside the NMP shell is not valid. Furthermore, the modes inside such spherical structures are usually the well-known whispering gallery modes. The surface plasmonic dispersion relation given in (12), which is usually used for a plane interface, is not applicable in the spherical nanohybrid system. Since these two equations (1) and (12) are fundamentally wrong, we think that all results based on them are incorrect. Therefore all authors wish to retract this Article. We deeply regret for the inconvenience caused to Optics and Laser Technology and apologize to the scientific community.