Abstract
A tunable multifunctional modulator of the stacked graphene-based hyperbolic metamaterial (HM) cells is proposed. The dielectric constant and group index of HM are theoretically investigated. The calculated results show that, for the cell structure, a transmission window in the reflection zone (TWRZ) can be obtained at the normal incidence, but all reflections are converted to the transmission when the incident angle is near 82°. Concurrently, a single frequency absorption in the transmission zone (SFATZ) is realized, which can be adjusted by the chemical potential of graphene. For the whole structure composed of cell structures with different chemical potentials, the ultra-wideband absorption and transmission window in the absorption zone (TWAZ) can be achieved, which can work in different frequency bands if the given structural parameters can be tailored. Those computed results can apply for switchable frequency-dependent and angle-dependent reflection-transmission modulations, single frequency and ultra-wideband absorbers, and a logic switch based on the TWAZ.
Sign-in/Register to access full text options 
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.
