Ultra-thin materials twist light into optical vortices for faster data transmission

Imagine a whirlpool spinning in a river, or a tornado swirling through the sky. They don't just spin on the spot: they travel forward while maintaining that spiraling motion inside them. These twisting motions, called vortices, are powerful and organized spirals. Now, imagine light that behaves the same way: a beam of light that spins as it moves forward. This "twisted" light, known as an optical vortex, can carry more information than normal light, opening the door to faster interne...