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Hologram pictures can store images representing millions of data bits, a density suitable for storing more than 400 gigabytes--100 digitized movies--on a DVD-size disc.
Ian Austen's article in today's New York Times outlines an advance in holographic technology from a former Bell Labs researcher and others. Instead of using costly and exotic crystals, this research team adapted low-cost lasers from DVD machines and developed a blend of special plastics to capture hologram interference patterns. While CDs and DVDs store data in a string of on-off bits etched in a spiral pattern, holograms store million-bit chucks of data distributed throughout the plastic recording media. The former Bell Labs holography researcher said that by varying the wavelengths and other properties of recording lasers they can also produce terabyte (1000 billion byte) discs.
Product development, including consumer applications, may take a few years, according to the article. -- John
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STOP DVI/HDCP AND DFAST
Ian Austen's article in today's New York Times outlines an advance in holographic technology from a former Bell Labs researcher and others. Instead of using costly and exotic crystals, this research team adapted low-cost lasers from DVD machines and developed a blend of special plastics to capture hologram interference patterns. While CDs and DVDs store data in a string of on-off bits etched in a spiral pattern, holograms store million-bit chucks of data distributed throughout the plastic recording media. The former Bell Labs holography researcher said that by varying the wavelengths and other properties of recording lasers they can also produce terabyte (1000 billion byte) discs.
Product development, including consumer applications, may take a few years, according to the article. -- John
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STOP DVI/HDCP AND DFAST