New technology developed to pack the equivalent of 2,000 Blu-ray discs into a diamond
Researchers at the University of Science and Technology of China have developed a technique to store information in diamond at an astounding density of 1.85TB per cubic centimeter. Such a storage medium can safely retain data at room temperature for millions of years.
Terabit-scale high-fidelity diamond data storage | Nature Photonics
Higher-density storage technique could allow diamond disk to store equivalent of 2,000 Blu-ray discs
Terabit-scale high-fidelity diamond data storage | Researching
Chinese researchers indicate diamonds can store data for millions of years
https://readwrite.com/chinese-researchers-indicate-diamonds-can-store-data-for-millions-of-years/
Previous research has shown that it is possible to store information in diamonds, and that they can be preserved for longer periods of time than other storage media, but there have been concerns that existing technology has a low storage capacity per volume.
Professor Du Jiangfeng and his colleagues at the University of Science and Technology of China have devised a new technology that uses lasers to store information at high density and have demonstrated the concept.
Although they call it diamond, they do not use diamonds that have been processed to sparkle, but rather thin diamond plates. Professor Mori and his team used a commercially available single crystal diamond plate and irradiated it with laser light to remove carbon atoms from the surface of the diamond, creating a small cavity. By irradiating this cavity with another laser light, they were able to give it a certain level of brightness, and by reading that brightness as information, they succeeded in using diamond as a storage medium.
The research team achieved a density of 1.85TB per cubic centimeter, the highest ever for storing information in diamond, with read accuracy exceeding 99%, and the potential for maintenance-free operation for millions of years.
Professor Mori and his team point out that 'in the future, it may become as large as a Blu-ray disc.' Technology media such as Readwrite report that 'it will achieve the density of 2,000 Blu-ray discs.' Blu-ray discs are sold by
At the time of the announcement, the concept had only been proven, and it is not yet commercially viable due to a lack of necessary equipment and high costs. However, Professor Mori and his team hope that 'it may become simplified and more affordable in the future.'
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