Scientists in Germany have crafted “skyrmion bags” of light—complex vortex-like structures—on the surface of gold by cleverly ...

Light can tie knots—literally. Engineers at Duke University have managed to manipulate laser beams to form intricate 3D patterns called optical knots, using custom-designed optics. These twisted beams ...

Knots are generally understood to form due to twists and turns of long, flexible materials that keep shoes on your feet or ...

The research team from the Institute of Modern Optics at Nankai University proposed an on-chip liquid crystal (LC) integrated terahertz vortex metasurface with active regulation. Through the ...