The terahertz range is generally defined as the portion of the electromagnetic spectrum that
lies between 100 GHz and 10 THz. It is situated above the microwave range, and below the …

In the past decade, the concept of metasurfaces has gradually dominated the field of
metamaterials owing to their fascinating optical properties and simple planar geometries. At …

Isolators, or optical diodes, are devices enabling unidirectional light propagation by using
non-reciprocal optical materials, namely materials able to break Lorentz reciprocity. The …

A shared aperture quad-band high-gain reflectarray antenna (RA) is proposed. It has a
stacked structure consisting of a Ka-band dual-band circularly polarized RA, a Ku-band …

Digital coding metasurface is aimed at building up a bridge between physics and
information science. Higher information capacity of the digital coding metasurface means …

Metasurfaces are artificial electromagnetic surfaces that consist of subwavelength scatterers
in an array configuration, exhibiting exceptional abilities to manipulate electromagnetic …

In order to harness the capabilities of terahertz waves, various metasurface-based functional
devices have been developed recently. However, due to the limited usage of systematic …

The development of optical systems is heading to multi-branch circuit design and
miniaturization. A beam splitter is a common device for dividing an incident beam into two …

This paper represents a low-profile large-scale circular-polarized (CP) plate array antenna
in the D-band. To achieve the high gain, high efficiency, and wideband at the same time, a …

We report a THz reflectarray metasurface which uses graphene as active element to achieve
beam steering, shaping and broadband phase modulation. This is based on the creation of …