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Photonics Startup Aims to Commercialize TB Discs

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CLEVELAND, Oct. 22, 2012 — Businesses and consumers may soon have a cheaper, more manageable way to store large amounts of digital data, thanks to a university startup that aims to make optical films capable of holding 1 to 2 TB — or about 50 Blu-ray movies.

As an alternative to storing data on energy-wasting magnetic discs or cumbersome magnetic tapes, Folio Photonics will use optical technology first developed by the Center for Layered Polymeric Systems at Case Western Reserve University's School of Engineering to make an optical film with 64 data layers.

“A disc will be on the capacity scale of magnetic tapes used for archival data storage,” said Kenneth D. Singer, the Ambrose Swasey Professor of Physics at Case Western Reserve and co-founder of Folio Photonics. “But they’ll be substantially cheaper and have one advantage: You can access data faster. You just pop the disc in your computer, and you can find the data in seconds. Tapes can take minutes to wind through to locate particular data.”

To make the 64-data-layer film, Singer and graduate student Brent Valle spread a thick, puttylike flow of repeatedly divided and stacked polymers into a film and rolled onto a spool; they estimate they can make a square kilometer of film in 1 h. They then cut and paste film onto the same hard plastic base on which DVDs and Blu-rays are built. Slight adjustments to a standard disc reader are necessary to enable it to probe and read the data on each layer without interference from layers above or below, they say.

The researchers aren’t the only ones pursuing terabyte-storage discs, Singer said. Other companies are “looking into a holographic technology, which requires two lasers to write the data and will require a whole new writer/reader. Ours has the advantage of lower manufacturing costs and is more compatible with current readers and writers.”

Folio Photonics’ discs are aimed at storing data not often or instantaneously needed. This could be useful for pathologists who store not only slides of tissues, but also the digital images they make, which can be manipulated to gather more information about disease or damage.

The Cleveland-based startup is the third company to come out of the Center for Layered Polymeric Systems. The scientists hope to have prototype discs and readers to show within a year.

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Oct 2012
The technology of generating and harnessing light and other forms of radiant energy whose quantum unit is the photon. The science includes light emission, transmission, deflection, amplification and detection by optical components and instruments, lasers and other light sources, fiber optics, electro-optical instrumentation, related hardware and electronics, and sophisticated systems. The range of applications of photonics extends from energy generation to detection to communications and...
AmericasBrent ValleBusinessCase Western Reserve UniversityCenter for Layered Polymeric Systemsdata storagedigital storageFolio PhotonicsindustrialKenneth SingerOhiooptical data storageopticspathology tissue slide storagephotonicsterabyte storage discs

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