So a loooong time ago the lab next door to the one I worked in at USC was the optics lab where Dr. Tim Strand was looking at making lens systems as holograms. B

So a loooong time ago the lab next door to the one I worked in at USC was the optics lab where Dr. Tim Strand was looking at making lens systems as holograms. Basically using a hologram lens to focus light like a "real" lens would. It was kind of far out but it did offer the promise of "flat" lenses. This is another approach (meta materials) which modify the light after it arrives. A really cool result!