Three-dimensional images that we can see from all directions are the next step up from holograms. To move us toward that goal, researchers from Brigham Young University have developed a new method to create such a 3D display.
The approach is called a free-space volumetric display and uses a technique called optical trapping. As reported in Nature, the team trapped and manipulated little specks of dust in the air to create 3D images.
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