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Multicolor Holography technology could enable extremely Compact 3D Displays

To create multicolor holographic images, the researchers fabricated a grating coupler, or a series of fringes, and a binary hologram in a very thin waveguide structure. The resulting structure combines the colors and then precisely separates them to generate a full color image.
Credit: Zhiqin Huang, Duke University

Lens-free holography method could bring color 3D displays to augmented reality glasses and smartphones. Researchers have developed a new approach to multicolor holography that could be used to make 3D color displays for augmented reality glasses, smartphones or heads-up displays without any bulky optical components.

In Optica, The Optical Society’s journal for high impact research, researchers from Duke University, USA describe how they encoded a multicolor image onto a 300-...

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