Ultrahigh-definition dynamic 3D holographic display by active control of volume speckle fields
- Journal:
- Nature Photonics
- Published:
- DOI:
- 10.1038/nphoton.2016.272
- Affiliations:
- 2
- Authors:
- 4
Research Highlight
Frosted glass enhances holographic displays
© spanteldotru/E+/Getty
Holograms, 3D images that can be viewed by the naked eye, have been made bigger and easier to view by controlling the usually disruptive scattering of light.
High-definition holograms are currently less than a centimetre in size with viewing angles of around three degrees, limiting their practicality. A team led by researchers from the Korea Advanced Institute of Science and Technology used a deformable mirror to direct light through two layers of frosted glass, which scatters the light in many directions.
Interference between light waves creates a speckle pattern that reduces the image quality, so the team used a wave-shaping device to direct the scattered light. Their technique generated a spinning cylindrical hologram that was 2 centimetres long and 0.8 centimetres wide, with an unprecedented viewing angle of 35 degrees.
Interactive humanoid holograms — like those in Star Trek and Red Dwarf — may be a long way off, but improving holographic displays could enhance visual entertainment, biomedical imaging and engineering design.
References
- Nature Photonics 11, 186–192 (2017). doi: 10.1038/nphoton.2016.272
Institutions | Authors | Share |
---|---|---|
Korea Advanced Institute of Science and Technology (KAIST), South Korea | 1.00 |