Engineers from the University of California, Riverside and Russian Academy of Science have a developed a new type of memory device utilizing holographic technology.
Holography is a rather broad field that seeks to manipulate light to generate certain optical traits that we can observe (i.e. holographic images)—in this case, use for storage. Spin waves are affected by magnetic fields, which means magnets could be used to manipulate where and how the waves move.
During the course of their research, the scientists were able to demonstrate the effectiveness of spin wave technology when they successfully retrieved a clear picture from their holographic memory device. They did so by applying wave interferences to their 2-bit magnonic holographic memory device (pictured above), resulting in the production of the desired image.
For the past nine years, Alexander Khitun and his colleagues have been working on a holographic memory device that uses spin waves to store data. Initially, Khitun wanted to develop a completely new type of logic circuits based on spin waves, but recently realized that it was much more prudent to adapt his research to current-day computer circuits.
Spin waves are especially intriguing to the development of new storage and processing mediums as they operate at a much shorter wavelength than conventional optical devices. This means engineers may be able to produce smaller electronic devices that have higher storage capacity. Even more advantageous is that the technology is adaptable to current computer circuits.
“The results open new field of research, which may have tremendous impact on the development of new logic and memory devices,” said Khitun, lead researcher and professor at UCR.