Abstract
Recently, the terahertz metamaterials with tunable EIT effect have a wide application range, especially in slow light applications area. However, the traditional tuning means are very difficult to implement, such as superconductor and MEMS, which limit their application range. For this reason, we proposed a terahertz EIT metamaterial structure consisting of two metallic strips, a split ring resonator and a graphene ribbon. The numerical results demonstrate that a transparency window is induced by the destructive interference of the bright mode and dark mode and moreover, the amplitude of the transparency window can be actively modulated by changing Fermi energy of graphene via electrostatic doping. The tunable response can attribute to the increasing conductivity of graphene, weakening near field coupling between the bright mode and dark modes. Therefore, these results have important reference for future development of slow light devices and sensors.
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Disclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.