Graphene champions the next generation 3D display technology

Graphene champions the next generation 3D display technology

Moving holograms like those used in 3D science fiction movies such as Avatar and Elysium have to date only been seen in their full glory by viewers wearing special glasses.

Now researchers at Swinburne University of Technology have shown the capacity of a technique using graphene oxide and complex laser physics to create a pop-up floating display without the need for 3D glasses.

Graphene is a two dimensional carbon material with extraordinary electronic and optical properties that offers a new material platform for next-generation nanophototonic devices.

Through a photonic process without involving heat or a change in temperature, the researchers were able to create nanoscale pixels of refractive index – the measure of the bending of light as it passes through a medium – of reduced . This is crucial for the subsequent recording of the individual pixels for holograms and hence naked eye 3D viewing.

"If you can change the you can create lots of optical effects," Director of Swinburne's Centre for Micro-Photonics, Professor Min Gu, said.

"Our technique can be leveraged to achieve compact and versatile optical components for controlling light. We can create the wide angle display necessary for mobile phones and tablets."

Dr Xiangping Li, who is one of the leaders of this research, said: "Owing to its atomic layer thickness and high mechanical strength, the use of graphene in mobile display units for flat two-dimensional displays is burgeoning.

"Our technology could also underpin future flexible and wearable display devices and transform them for 3D display."

Professor Gu said this new generation digital holographic 3D technology also has applications for military devices, entertainment, remote education and medical diagnosis.

The research Athermally photoreduced graphene oxides for holographic 3D images is published in Nature Communications today.


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More information: "Athermally photoreduced graphene oxides for three-dimensional holographic images." Nature Communications 6, Article number: 6984 DOI: 10.1038/ncomms7984
Journal information: Nature Communications

Citation: Graphene champions the next generation 3D display technology (2015, April 23) retrieved 23 August 2019 from https://phys.org/news/2015-04-graphene-champions-3d-technology.html
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Apr 23, 2015
I would love to see a working demonstration, at least as a video. Or is this all fluff? Anyone has a link to something real?

Apr 23, 2015
I would love to see a working demonstration

There's some images in the original paper (follow the link at the bottom of the article. The PDF is free)

Apr 23, 2015
Note that the paper clearly states that these are "write-once" holograms. "Write-once" holograms are not "moving holograms", they are static ("still") holograms.

Apr 23, 2015
How is this any different than a Parallax barrier?

Apr 26, 2015
it's a good first step if I understand it right. Seems layering, bumps in the graphene sheet, and defects can be leveraged into refractive indexes. Find a way to shift or deactivate a layer with current and you have a 3d realtime movie hologram.
but it is currently overstated.

Apr 28, 2015
@mark0101 Its effect is similar indeed. However this would get rid of ghosting and add the possibility to add variable perspective to the image (the ability to slightly look "around" the displayed object).

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