Researchers discover way to create true-color 3-D holograms

Apr 08, 2011 by Bob Yirka report
Researchers discover way to create true-color 3-D holograms
A view of a 3-dimensional green crane reconstructed by white-light illumination. Credit: Image © Science/AAAS

( -- Satoshi Kawata, Miyu Ozaki and their team of photonics physicists at Osaka University in Japan, have figured out a way to capture the original colors of an object in a still 3-D hologram by using plasmons (quantums of plasma oscillation) that are created when a silver sheathed material is bathed in simple white light. The discovery marks a new milestone in the development of true 3-D full color holograms. In their paper, published in Science magazine, the researchers show a rendered apple in all its natural red and green hues.

Holograms, of course, have been around for years, with the first images created in the 60’s. Back then the technique was to fire a laser at an object and then record the patterns of interference in the light waves onto a photo sensitive material. Later, rainbow type holograms (such as those used on credit cards) were, and still are, created by using a technique whereby white light is reflected off a silver backing through a plastic film that contains several different images of a single object.

Image (c) Science/AAAS

The team at Osaka took another approach, they use both lasers and white light. They first fire a laser at an object, say an apple, to create an interference pattern, but instead of just one laser color, they actually use three; red, green and blue. The interference pattern is then captured on a light sensitive material which is coated with silver (because it contains electrons that are easily excited by white light) and silicon dioxide (to help steer the waves). They then shine a steady on the metal sheathed material exciting the free electrons, causing the creation of surface plasmons, which results in the regeneration of the captured image as a true-color 3-D ; one that can be viewed from almost any angle and is the same colors as the original object.

Currently, the technique has only been shown to work on still images, and the results displayed on a very small surface area (about as big as a baseball card), but the results of research is nonetheless a very big step towards creating not just more realistic holograms, but true animated 3-D technology.

Explore further: 'Dressed' laser aimed at clouds may be key to inducing rain, lightning

More information: "Surface-Plasmon Holography with White-Light Illumination," by M. Ozaki et al., Science 8 April 2011: Vol. 332 no. 6026 pp. 218-220. DOI: 10.1126/science.1201045

Related Stories

'Smart' holograms help patients help themselves

Feb 04, 2008

Patients with diabetes, cardiac problems, kidney disorders or high blood pressure could benefit from the development of new hologram technology. The new "smart" holograms, which can detect changes in, for example, blood-glucose ...

Yes, we have no blue bananas

Oct 19, 2006

German scientists say color perception depends not only on an object's pigmentation but also on our knowledge of what the object should look like.

Tying light in knots

Jan 17, 2010

( -- The remarkable feat of tying light in knots has been achieved by a team of physicists working at the universities of Bristol, Glasgow and Southampton, UK, reports a paper in Nature Physics this w ...

Recommended for you

Robotics goes micro-scale

Apr 17, 2014

( —The development of light-driven 'micro-robots' that can autonomously investigate and manipulate the nano-scale environment in a microscope comes a step closer, thanks to new research from the ...

High power laser sources at exotic wavelengths

Apr 14, 2014

High power laser sources at exotic wavelengths may be a step closer as researchers in China report a fibre optic parametric oscillator with record breaking efficiency. The research team believe this could ...

User comments : 5

Adjust slider to filter visible comments by rank

Display comments: newest first

5 / 5 (1) Apr 08, 2011
I would like to see a video of one of these holograms. That would be better than a 2D picture. I look forward to 3D color apples leaping at me from ads very soon.
not rated yet Apr 08, 2011 already has this true color full motion holography
4.5 / 5 (2) Apr 08, 2011
This is the best video, I was able to find: http://www.youtub...8nOErpHA
1 / 5 (3) Apr 08, 2011
Sub: Welcome Trend
True 3-D full color holograms
My projections through Cosmology Vedas Interlinks -help
new dimensional approach- Science to catch-up with Nature and Philosophy-http://cosmologyt...dhi.html
Vidyardhi nanduri
not rated yet Apr 14, 2011
Sub: Welcome Trend
True 3-D full color holograms
My projections through Cosmology Vedas Interlinks -help
new dimensional approach- Science to catch-up with Nature and Philosophy-http://cosmologyt...dhi.html
Vidyardhi nanduri

What the hell are you blabbering about?

I think you had to be there. Unfortunately, the ship has already left.

More news stories

NASA's space station Robonaut finally getting legs

Robonaut, the first out-of-this-world humanoid, is finally getting its space legs. For three years, Robonaut has had to manage from the waist up. This new pair of legs means the experimental robot—now stuck ...

Ex-Apple chief plans mobile phone for India

Former Apple chief executive John Sculley, whose marketing skills helped bring the personal computer to desktops worldwide, says he plans to launch a mobile phone in India to exploit its still largely untapped ...

Filipino tests negative for Middle East virus

A Filipino nurse who tested positive for the Middle East virus has been found free of infection in a subsequent examination after he returned home, Philippine health officials said Saturday.

Egypt archaeologists find ancient writer's tomb

Egypt's minister of antiquities says a team of Spanish archaeologists has discovered two tombs in the southern part of the country, one of them belonging to a writer and containing a trove of artifacts including reed pens ...