Diamonds can store data stably for long periods of time
University of Science and Technology of China
A diamond-based system capable of storing information for millions of years has been developed by researchers with a record-breaking storage density of 1.85 terabytes per cubic centimetre. Using laser pulses to encode data into diamonds, this system surpasses previous techniques in terms of longevity and storage capacity.
With the ability to store approximately 100 terabytes of data in a diamond optical disc the size of a standard Blu-ray, this technology offers a far more durable and long-lasting solution compared to traditional storage methods. According to Ya Wang at the University of Science and Technology of China, once the internal data storage structures are stabilised using this technology, diamonds can retain data for millions of years at room temperature without any maintenance.
The research team utilized ultrafast laser pulses to create empty spaces within small pieces of diamond, which were then used to store information. By controlling the energy of the laser, specific sites within the diamond were marked with varying brightness levels, allowing for data storage and retrieval based on the number and location of these empty spaces.
Images, including famous artworks and historical photographs, were successfully stored using this method with more than 99% accuracy and completeness. While the current technology may not be commercially viable due to the required expensive equipment, the researchers believe that future iterations could be miniaturised for wider adoption.
In the near future, government agencies, research institutes, and libraries focused on archiving and data preservation are likely to be early adopters of this diamond-based storage system. The potential for long-term data retention and high storage density make this technology a promising solution for preserving valuable information for future generations.
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