Simultaneous SAM and OAM identification is a significant but challenging topic. Chinese scientists have demonstrated that a single spin-decoupled azimuth-quadratic phase metasurface could perform ...

The orbital angular momentum (OAM) of electromagnetic waves—a kind of "structured light"—is associated with a helical or twisted wavefront. The helical modes are characterized by a topological charge.

Researchers have demonstrated the world's first metasurface laser that produces 'super-chiral light': light with ultra-high angular momentum. The light from this laser can be used as a type of ...

An artist's impression of the metasurface laser to produce super-chiral twisted light with OAM up to 100. Courtesy: Wits University A new metasurface laser can produce light in any desired angular ...

Researchers have developed a compact quantum detector that makes terahertz radiation much easier to detect. A specially designed metasurface funnels incoming energy into tiny active regions, greatly ...

Researchers have demonstrated the world's first metasurface laser that produces "super-chiral light": light with ultra-high angular momentum. The light from this laser can be used as a type of ...