The generation of photocurrent in an ideal two-dimensional Dirac spectrum is symmetry
forbidden. In sharp contrast, we show that three-dimensional Weyl semimetals can …

Industrial pollution leads to serious air pollution, which has an enormous impact on the
earth's environment. Converting greenhouse gas carbon dioxide (CO 2) into value-added …

Metamaterials open up various exotic means to control electromagnetic waves and among
them polarization manipulations with metamaterials have attracted intense attention. As of …

The electromagnetic wave in the terahertz region shows many promising characteristics,
such as non-ionization,“fingerprint” spectrum, sensitivity to weak resonance, strong …

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 …

Metamaterials promise an exotic approach to artificially manipulate the polarization state of
electromagnetic waves and boost the design of polarimetric devices for sensitive detection …

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 …

Metasurfaces open up a low-dimensional artificial approach to tailor electromagnetic (EM)
waves with unprecedented functionalities. However, the ability to actively control and …

Polarization conversion devices are key components in spectroscopy and wireless
communications systems. Conventional terahertz waveplates made of natural birefringent …

Polarization conversion of terahertz waves is important for applications in imaging and
communications. Conventional wave plates used for polarization conversion are inherently …