In this paper, we review the existing approaches for vortex and vector beam shaping and
generation in the terahertz frequency range. The particular focus of this review is on the …

Broadband tunable terahertz (THz) polarization converter is a vivid necessity due to its great
significance in functional utilization. Graphene is a promising material for the evolution of …

We present a transmissive all-dielectric terahertz (THz) metamaterial half-wave plate with a
double-working-layer structure. One layer works as a half-wave plate to enable polarization …

Terahertz technology has attracted wide attention because of its potential applications in
diverse fields, such as spectroscopy, imaging, and nondestructive evaluation, but the lack of …

Tunable liquid crystal devices that can change terahertz wave polarization continuously
have many potential applications in terahertz optical systems. We present a reflective liquid …

We present a method to design and fabricate a kind of converters based on flexible
metasurfaces which can change the polarization state of an incident terahertz beam. The …

A terahertz broadband polarization converter based on the metasurface of a double-split
ring resonator is proposed. The structural parameters of this device have been optimized in …

A dielectric metasurface with line-square compound lattice structure has been fabricated
and demonstrated in the terahertz (THz) regime by the THz time-domain spectroscopy and …

The terahertz (THz) resonance, chirality, and polarization conversion properties of a double-
layer chiral metasurface have been experimentally investigated by THz time domain …

Developing the broadband controllable or tunable terahertz (THz) polarization and phase
devices are in an urgent need. In this paper, we demonstrate a broadband controllable THz …