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Researchers have now created a new type of holographic memory device that can store a large amount of datausing spin waves.
The device developed by researchers at the University of California, Riverside Bourns College of Engineering and Russian Academy of Science paves way for new kind of memory storage devices that can store large amount of data in three dimensions.
"The results open a new field of research, which may have tremendous impact on the development of new logic and memory devices," said Alexander Khitun, the lead researcher, who is a research professor at UC Riverside, according to a news release.
The device exploits spin wave interference or collective oscillations of spins in magnets. Currently, storage devices use optical beams. Holography is a technique that captures light scattered by an object, and then presents it in such a way that the observer sees it as a three-dimensional image. The technique, also called "lens-less" photography, captures interference pattern at the film, which makes the image more detailed than a conventional photograph. Holograms seen in driver's licenses and currency notes are just few examples of the technique at work.