New way to create holographic projections
3D-SDH PROJECTOR AND ITS CHARACTERIZATION
Researchers from the University of Science and Technology of China and the National University of Singapore have developed a new way to create ultrahigh-density 3D holographic projections .
This new hologram technique could enable realistic representations of the world around us for use in virtual reality and other applications.
- The new approach, three-dimensional scattering-assisted dynamic holography (3D-SDH), achieves a depth resolution of more than three orders of magnitude greater than state-of-the-art methods for multiplane holographic projection.
- To create the hologram, the researchers combined a spatial light modulator with a diffuser that enables multiple image planes to be separated by a much smaller amount without being constrained by the properties of the SLM.
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The
researchers validated the concept
experimentally by building a prototype 3D-SDH projector to create dynamic 3D projections.
- They showed that 3D-SDH improved axial resolution of more than three orders of magnitude over the traditional counterpart.
- The setup enables ultrahigh-density 3D holographic projection by suppressing crosstalk between the aircraft and exploiting the scattering of light and wavefront shaping.
- The current 3D holograms the researchers demonstrated are all point-cloud 3D images, meaning they cannot present the solid body of a 3D object.
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