A new optical device allows researchers to generate and switch between two stable, donut-shaped light patterns called ...

Chiral metasurfaces can strongly twist the polarization of light, but how this process unfolds in space and time has been unclear. Scientists in China have now used ultrafast electron microscopy and ...

Abstract: A quad-band linear-to-circular polarization converter with low insertion loss is presented for satellite communication (Satcom) applications. Addressing the well-known challenges in ...

A European consortium led by CIRCE has officially launched Bios Mater, a Horizon Europe project co-funded by the Circular Bio-Based Europe Joint Undertaking (CBE JU) and the European Union. The ...

Introduction: As an artificial two-dimensional material, metasurfaces are essential for modifying the fundamental characteristics of electromagnetic (EM) waves. Numerous researchers have created and ...

Abstract: This paper presents a wideband dielectric resonator antenna (DRA) with linear and circular polarization diversity to provide reliable communication for unmanned aerial vehicles (UAVs) in ...

GPS antennas are found in a myriad of applications in various industries such as tracking, location identification, surveying etc. These antennas are used to connect to GPS satellites and acquire GPS ...

Researchers use circularly polarized light to control the direction of exciton polaritons in 2D semiconductors, enabling new tools for nanoscale photonics. (Nanowerk Spotlight) Directing light along ...