Navigation Links
UA optical scientists add new, practical dimension to holography
Date:2/6/2008

University of Arizona optical scientists have broken a technological barrier by making three-dimensional holographic displays that can be erased and rewritten in a matter of minutes.

The holographic displays which are viewed without special eyewear are the first updatable three-dimensional displays with memory ever to be developed, making them ideal tools for medical, industrial and military applications that require "situational awareness."

"This is a new type of device, nothing like the tiny hologram of a dove on your credit card," UA optical sciences professor Nasser Peyghambarian said. "The hologram on your credit card is printed permanently. You cannot erase the image and replace it with an entirely new three-dimensional picture."

"Holography has been around for decades, but holographic displays are really one of the first practical applications of the technique," UA optical scientist Savas Tay said.

Dynamic hologram displays could be made into devices that help surgeons track progress during lengthy and complex brain surgeries, show airline or fighter pilots any hazards within their entire surrounding airspace, or give emergency response teams nearly real-time views of fast-changing flood or traffic problems, for example.

And no one yet knows where the advertising and entertainment industries will go with possible applications, Peyghambarian said. "Imagine that when you walk into the supermarket or department store, you could see a large, dynamic, three-dimensional product display," he said. It would be an attention-grabber.

Tay, Peyghambarian, their colleagues from the UA College of Optical Sciences and collaborators from Nitto Denko Technical Corp., which is an Oceanside, Calif., subsidiary of Nitto Denko, Japan, report on the research in the Feb. 7 issue of the journal Nature.

Their device basically consists of a special plastic film sandwiched between two pieces of glass, each coated with a transparent electrode. The images are "written" into the light-sensitive plastic, called a photorefractive polymer, using laser beams and an externally applied electric field. The scientists take pictures of an object or scene from many two-dimensional perspectives as they scan their object, and the holographic display assembles the two-dimensional perspectives into a three-dimensional picture.

The Air Force Office of Scientific Research, which has funded Peyghambarian's team to develop updatable holographic displays, has used holographic displays in the past. But those displays have been static. They did not allow erasing and updating of the images. The new holographic display can show a new image every few minutes.

The four-inch by four-inch prototype display that Peyghambarian, Tay and their colleagues created now comes only in red, but the researchers see no problem with developing much larger displays in full color. They next will make one-foot by one-foot displays, then three-foot by three-foot displays.

"We use highly efficient, low-cost recording materials capable of very large sizes, which is very important for life-size, realistic 3D displays," Peyghambarian said. "We can record complete scenes or objects within three minutes and can store them for three hours."

The researchers also are working to write images even faster using pulsed lasers.

"If you can write faster with a pulsed laser, then you can write larger holograms in the same amount of time it now takes to write smaller ones," Tay said. "We envision this to be a life-size hologram. We could, for example, display an image of a whole human that would be the same size as the actual person."

Tay emphasized how important updatable holographic displays could be for medicine.

"Three-dimensional imaging techniques are already commonly used in medicine, for example, in MRI (Magnetic Resonance Imaging) or CAT scan (Computerized Axial Tomography) techniques," Tay said. "However, the huge amount of data that is created in three dimensions is still being displayed on two-dimensional devices, either on a computer screen or on a piece of paper. A great amount of data is lost by displaying it this way. So I think when we develop larger, full-color 3D holograms, every hospital in the world will want one."


'/>"/>

Contact: Lori Stiles
lstiles@email.arizona.edu
520-626-4402
University of Arizona
Source:Eurekalert

Related biology technology :

1. Shamir Optical Industry Ltd. Announces Declaration of a Cash Dividend
2. Ultrafast optical shutter is switched entirely by laser light
3. Shamir Optical Industry Ltd. Reports Third Quarter 2007 Results
4. CRi Announces Maestro 2, the Next Generation in Vivo Optical Imaging Systems
5. New Optical Breast Cancer Imaging Technology Garners Cover Story in National Radiology Magazine
6. Nanofabrication method paves way for new optical devices
7. Berkeley scientists bring MRI/NMR to microreactors
8. Venter Institute Scientists Create First Synthetic Bacterial Genome
9. American Scientists Named as Laureates of the 2008 (24th) Japan Prize
10. Scientists discover new method of observing interactions in nanoscale systems
11. Carbon offset warning from international team of scientists
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:3/1/2017)... (PRWEB) , ... March 01, 2017 , ... ... Inc. will hold its annual technology show and open house, Southern Tech Fest, ... machinery from Okuma, Tsugami, Hardinge Group and Chiron and perform live metal cutting ...
(Date:2/28/2017)... ... February 28, 2017 , ... ... formed a strategic partnership to develop and market automated chromatographic solutions for ... automated testing solutions will save analysis time and reduce labor costs, while ...
(Date:2/28/2017)... Australien, 28. Februar 2017  ITL Limited ... Anbieter und strategischer Partner des Bereiches Medizintechnik ... Gesundheitsbereich, das individuelle Gesundheitsversorgung fördert, gibt offiziell ... (ITL) bekannt. Die Umbenennung ... der neuen Markenidentität und wird durch die ...
(Date:2/28/2017)... ... February 28, 2017 , ... Patient travel ... and expertise. Colpitts Clinical Trial Travel and Expense , a division of ... unique need within the biotechnology and pharmaceutical industries in the United States, Europe, ...
Breaking Biology Technology:
(Date:2/26/2017)... , Feb. 25, 2017  Securus Technologies, a ... solutions for public safety, investigation, corrections and monitoring, ... and Reentry. "Too often, too many ... and county jails are trying to tackle this ... and friends and family members. While significant steps are ...
(Date:2/22/2017)... , Feb. 22, 2017 With the ... ABI Research identifies four technologies that innovative and ... secure significant share in the changing competitive landscape: ... passive authentication.   "Companies can no ... to security," says Dimitrios Pavlakis , Industry ...
(Date:2/21/2017)... -- Der weltweite Biobanking-Sektor wird bis zum ... mit mehr als 50 Vertretern aus verschiedenen Branchen wurde aber ... diese Prognose zu realisieren. ... Zu den Schwierigkeiten für ... für die Biobank, die Implementierung Zeit sparender Technologien, ein ...
Breaking Biology News(10 mins):