Jeremy Hsu in New Scientist:
The famous marketing slogan about how a diamond is forever may only be a slight exaggeration for a diamond-based system capable of storing information for millions of years – and now researchers have created one with a record-breaking storage density of 1.85 terabytes per cubic centimetre.
Previous techniques have also used laser pulses to encode data into diamonds, but the higher storage density afforded by the new method means a diamond optical disc with the same volume as a standard Blu-ray could store approximately 100 terabytes of data – the equivalent of about 2000 Blu-rays – while lasting far longer than a typical Blu-ray’s lifetime of just a few decades.
“Once the internal data storage structures are stabilised using our technology, diamond can achieve extraordinary longevity – data retention for millions of years at room temperature – without requiring any maintenance,” says Ya Wang at the University of Science and Technology of China in Hefei.
More here.
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I
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