A team of scientists from Purdue just made tiny holograms with lasers. They are smaller than the width of a human hair!

Of course, the scientists aren't doing this just for Star Wars like messages in the future. This may actually change the future of display technology.

The hologram set-up uses a metasurface made from thousands of V-shaped nanoantennas hammered into a gold foil. When laser light shines through the bottom it can project a hologram just 10 microns above the metasurface.

The researchers who built the technology were able to display "PURDUE" in a space narrower than a human hair. This technique could be used to form pixels for future displays and changing its shape is as easy as rearranging the nanoantennas on the metasurface.