Better than a hologram: BYU study produces 3D images that float in ‘thin air’| Brigham Young University

In the original Star Wars film, R2D2 projects an image of Princess Leia in distress. The iconic scene includes the line still famous 40 years later: “Help me Obi Wan Kenobi, you’re my only hope.” BYU electrical and computer engineering professor and holography expert Daniel Smalley has long had a goal to create the same type of 3D image projection. In a paper published this week in Nature, Smalley details the method he has developed to do so.

Source: Better than a hologram: BYU study produces 3D images that float in ‘thin air’ | Brigham Young University