Abstract
This chapter analyzes photonic properties of planar nanoarrays composed of dielectric resonators. Because of low loss, these arrays, called metasurfaces (MSs), promise significant advantages over plasmonic alternatives. One of the most important properties of these structures is their capability of providing directional scattering controlled by interference between waves radiated at electric and magnetic dipolar resonances. The approach to controlling dipolar modes by tailoring the heights of cylindrical resonators is described. It is demonstrated that realizing the full transmission through MSs and 2π phase control can be achieved regardless of coincidence of two resonances. It is also shown that obtaining desired functionalities is impacted by the surrounding media and lattice parameters of MSs. Depending on lattice constants, field distributions in arrays get controlled either by coupling between resonators, or by lattice resonances—the product of surface-wave diffraction. In addition, dense, heavily packed structures demonstrate the phenomenon of electromagnetically induced transparency used to realize slow waves.
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 callMore From: Dielectric Metamaterials and Metasurfaces in Transformation Optics and Photonics
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.
