ï»This calculation was analyzed over and over, but the thing is, no one expected to prove it, at least in a lab. Even Breit and Wheeler thought it impossible. Scientists at Imperial College London now believe its possible to turn actual light into matter results with a new kind of collider.
This new collider would be a photon-photon collider, which would use a high-energy laser on electrons, speeding them up as fast as they can go at just below the speed of light. These super-fast electrons would be aimed at a gold plate, which turns them into a beam of highly active photons. Meanwhile, another high-intensity laser would fire into a gold chamber, creating a thermal radiation field. The photon beam streams into the chamber, which gets the photons smashing against each other, forming electrons and positrons. And voila, you have light becoming matter.