New Flat Lens Could Revolutionize Cameras as We Know Them | Raw File | Wired.com: On the flat lens created by Capasso and his colleagues, a series of small nano structures, what they call nanoantennas, are systematically arranged on the silicon wafer and when the light hits these antennas they do the job of refracting the light so that it all ends up on the same focal plane.
“What we’ve done is create an artificial refraction process,” Capasso says.