Surface plasmon polaritons excitation at the interface of graphene and sodium media

Akbar, J., Bin, X., Hou, L. , Marsh, J. H. and Liu, X. (2022) Surface plasmon polaritons excitation at the interface of graphene and sodium media. European Physical Journal Plus, 137, 291. (doi: 10.1140/epjp/s13360-021-02275-1)

Abstract

The surface plasmon polaritons (SPPs) are excited at the interface of sodium and graphene media due to the effective control of dielectric functions of the two media. The absorption and dispersion behaviors of SPPs waves are modified with changing the strength of control fields and their phases. The normal and anomalous SPPs dispersion are controlled for slow and fast SPPs propagation. The group index changes in the range −2000≤ng≤2000 with the strength of control frequencies. The maximum SPPs group velocity is measured to be 1.5×105m/s and the maximum propagation length is measured to be 80λ. Furthermore, the propagation length of SPPs can be controlled with strength of the control fields and their phases variation. These controlled SPPs have potential applications in optical tweezers, nano-photonics, plasmonster technology and sensing technology.

• Item Type: Articles
• Status: Published
• Refereed: Yes
• Glasgow Author(s) Enlighten ID: Liu, Professor Xuefeng and Hou, Dr Lianping and Marsh, Professor John and Akbar, Mr Jehan
• Authors: Akbar, J., Bin, X., Hou, L., Marsh, J. H., and Liu, X.
• College/School: College of Science and Engineering > School of Engineering; College of Science and Engineering > School of Engineering > Electronics and Nanoscale Engineering
• Journal Name: European Physical Journal Plus
• Publisher: Springer
• ISSN: 2190-5444
• ISSN (Online): 2190-5444
• Copyright Holders: Copyright © The Author(s), under exclusive licence to Società Italiana di Fisica and Springer-Verlag GmbH Germany, part of Springer Nature 2022
• First Published: First published in European Physical Journal Plus 137:291
• Publisher Policy: Reproduced in accordance with the publisher copyright policy