Diamonds can store data for a long time
University of Science and Technology
The slogan of the famous marketing that is a diamond forever, only a diamond-based system can be a minor exaggeration that is capable of storing information for millions of years-and now researchers have given a record-brakeing storage density Along with 1.85 terbites are made with cubic centimeters. ,
Previous technologies have also used laser pulses to encoded data in diamonds, but high storage density carried by new method means a diamond optical disc with the same volume as a standard blue-ray About 100 terabytes can store data of data-2000 blu-rays equal to an altruent-when a few decades last longer than a distinct blue-ray lifetime.
“Once internal data storage structures become stable using our technology, the diamond can achieve extraordinary longevity – data retention for millions of years at room temperature – without any maintenance requirement,” Then wang At the University of Science and Technology, China at Hefei.
Wang and his colleagues worked only a few millimeters long with shorter pieces of diamonds, although they say that the future versions of the system may be in the form of large storage discs. Their method used ultrafast laser pulses to get some of the diamond carbon atoms out of place, overtaking the empty locations, leaving the size of single atoms that each demonstrated a stable brightly level Was.
By controlling the energy of the laser, researchers can create multiple empty spaces on specific sites within diamonds, and the density of those places affects the overall brightness of each site. “The number of empty spaces can be determined by looking at the brightness, which allows us to read the stored information,” says Wang.
The team then stored images – which includes a sequence of 1878 photos of Eadweard Muybridge, showing a rider on a gallop running horse – by map . The system saved this data with more than 99 percent accuracy and perfection.
This storage method is not yet commercially viable because it requires expensive lasers and high -speed fluorescence imaging cameras, as well as with other devices, Wang says. But he and his colleagues hope that their diamond-based system can eventually be shortened to fit a microwave oven-shaped space.
“In short -term, government agencies, research institutes and libraries focus on collection and data protection, possibly eager to adopt this technique,” they say.
Subject:
(Tagstotransite) Laser (T) Diamond (T) Data
