Mitchell Kenney

TL;DR: The design of the hologram integrates a ground metal plane with a geometric metasurface that enhances the conversion efficiency between the two circular polarization states, leading to high diffraction efficiency without complicating the fabrication process.

TL;DR: By combining the freedom of both the structural design and the orientation of split ring resonator antennas, this work demonstrates terahertz metasurfaces that are capable of controlling both the phase and amplitude profiles over a very broad bandwidth.

TL;DR: In this paper, a planar metasurface fractal cross absorber is proposed for the terahertz (THz) band with high absorption and broadband capability, which is a direct step towards the development of highly sought after detectors and sensing devices.

TL;DR: In this article, the amplitude of anomalously refracted circularly cross-polarized terahertz waves can be effectively modulated by an applied gate voltage, which can lead to various advanced applications that require dynamical control over electromagnetic waves, such as amplitude tunable active focusing lenses, vortex phase plates and dynamic holography.

TL;DR: In this paper, a subwavelength elliptical and circular nanohole array in a metallic film was presented, which simultaneously exhibits high transmission efficiency, polarization insensitivity, and narrow line width.