Terahertz radiation encompasses a wide band of the electromagnetic spectrum, spanning
from microwaves to infrared light, and is a particularly powerful tool for both fundamental …

Metamaterial devices (metadevices) have been developed in progress aiming to generate
extraordinary performance over traditional devices in the (sub-) terahertz (THz) domain, and …

Chirality prevails in nature and is of great value for molecular biology, medicine, and
bioscience. Due to the enhancement of chiroptical responses, chiral metasurfaces has …

Optical activity (polarization rotation of light) is one of the most desired features of chiral
media, as it is important for many polarization‐related applications. However, in the THz …

In this work, we examine gradual cross polarization conversion using two coupled circular
split ring resonators (SRRs) in the terahertz (THz) frequency regime. In the proposed …

The terahertz (THz) band has a great potential for the development of communication
technology, but it has not been fully utilized due to the lack of practical devices, especially …

We demonstrate a single-layer THz metadevice that exhibits cross polarization transmission,
a key factor to achieve optical activity. The device is comprised of a two-dimensional array of …

In this paper, a unique metamaterial (MM) design incorporating both electromagnetically
induced transparency (EIT) effect and polarization conversion is proposed. It consists of a …

In the past decades, metasurfaces have shown their extraordinary abilities on manipulating
the wavefront of electromagnetic wave. Based on the ability, various kinds of metasurfaces …

Dark modes represent a class of forbidden transitions or transitions with weak dipole
moments between energy states. Due to their low transition probability, it is difficult to realize …