Abstract
The proposed graphene metasurface of composite structures of multi-band and wide-band transparency windows was investigated by the finite-difference time-domain method. The authors discussed a structure which consisted of graphene ribbons and TiO 2 -SiO 2 layer which was sandwiched in between two lithium fluoride dielectric slabs. An electromagnetically induced transparency (EIT) window could be found and tuned gently by the width of lithium fluoride dielectric slabs. Furthermore, an improved structure of air groove in the graphene ribbon was designed. The result showed that a wide-band EIT window was obtained and tuned by the width and thickness of air groove. The existing research shows that the graphene ribbon is bright mode and LiF slabs are dark mode. These results can find potential applications for many areas such as multi-band wavelength slow-light devices, active plasmon switching, infrared invisibility and optical sensing.
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: 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.
