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Promise shown for data encryption and data storage using holograms
March 28, 2006Optical image correlation in photorefractive mesogenic composites
The rapidly developing digital age demands greater processing power, data storage and data encryption for computer based technologies. Recent developments point towards optical information processing as a great leap forward.
These optical technologies use light based techniques and sources such as lasers to achieve results better than traditional electronic computing and more conventional magnetic based storage methods.
Holograms have been shown to be able to store, write and read massive amounts of data. These holographic data storage techniques can also be accessed at high speeds.
The holographic technique is of particular interest as it allows the registration, transformation, and manipulation of the spatial structure of the light wave fronts. This paper, by Japanese researchers from Nagaoka University of Technology and University of Hyogo, Akira Emoto, Hiroshi Ono and Nobuhiro Kawatsuki presents a matched filter technique which allows the spatial correlation of two optical images for pattern classification and/or detection.
The results demostrate optical image correlation by means of Fourier transform holograms in the region of Raman-Nath diffraction on to photorefractive mesogenic composites film. The reconstructed image produced is readily recognisable as common numerals. Greater study is required into this technique but it points to a new method for fast, efficient storage of incredible amounts of data with high levels of security encryption.
AZoNetwork
Holograms have been shown to be able to store, write and read massive amounts of data. These holographic data storage techniques can also be accessed at high speeds.
The holographic technique is of particular interest as it allows the registration, transformation, and manipulation of the spatial structure of the light wave fronts. This paper, by Japanese researchers from Nagaoka University of Technology and University of Hyogo, Akira Emoto, Hiroshi Ono and Nobuhiro Kawatsuki presents a matched filter technique which allows the spatial correlation of two optical images for pattern classification and/or detection.
The results demostrate optical image correlation by means of Fourier transform holograms in the region of Raman-Nath diffraction on to photorefractive mesogenic composites film. The reconstructed image produced is readily recognisable as common numerals. Greater study is required into this technique but it points to a new method for fast, efficient storage of incredible amounts of data with high levels of security encryption.
AZoNetwork
Data Storage News and Current Data Storage Events RSSNew 'nano-positioners' may have atomic-scale precision
Engineers have created a tiny motorized positioning device that has twice the dexterity of similar devices being developed for applications that include biological sensors and more compact, powerful computer hard drives.
Researchers untangle quantum quirk
Quantum computing has been hailed as the next leap forward for computers, promising to catapult memory capacity and processing speeds well beyond current limits. Several challenging problems need to be cracked, however, before the dream can be fully realized.
European light research opens door for optical storage and computing
The goal of replacing electronics with optics for processing data in computers is coming closer through cutting edge European research into the mysterious properties of "fast and slow" light.
Computer scientists develop solutions for long-term storage of digital data
Although the digital age is well under way, one crucial detail remains to be worked out--how to store vast amounts of digital information in a way that allows future generations to recover it.
The Not-So-Digital Future of Digital Signal Processing
Fungi processing audio signals. E. Coli storing images. DNA acting as logic circuits. It's possible, and in some cases, it's already happened. In any event, performing digital signal processing using organic and chemical materials without electrical currents could be the wave of the future.
A researcher of UPV/EHU has designed nanomagnets for industry
The PhD, defended by chemist Sonia Moralejo García at the University of the Basque Country (UPV/EHU), achieved a well-defined line for the manufacture of nanomagnets and other magnetic devices of wide industrial application.
Listening for the cosmic symphony: New SU supercomputer will help scientists listen for black holes
Scientists hope that a new supercomputer being built by Syracuse University's Department of Physics may help them identify the sound of a celestial black hole. The supercomputer, dubbed SUGAR (SU Gravitational and Relativity Cluster), will soon receive massive amounts of data from the California Institute of Technology (Caltech) that was collected over a two-year period at the Laser Interferometer Gravitational-Wave Observatory (LIGO).
NIST team develops novel method for nanostructured polymer thin films
All researchers at the National Institute of Standards and Technology (NIST) wanted was a simple, quick method for making thin films of block copolymers or BCPs (chemically distinct polymers linked together) in order to have decent samples for taking measurements important to the microelectronics industry.
Using Life's Building Blocks to Control Nanoparticle Assembly
Using DNA, the molecule that carries life's genetic instructions, researchers at the U.S. Department of Energy's Brookhaven National Laboratory are studying how to control both the speed of nanoparticle assembly and the structure of its resulting nanoclusters.
Nanoscale blasting adjusts resistance in magnetic sensors
A new process for adjusting the resistance of semiconductor devices by carpeting a small area of the device with tiny pits, like a yard dug up by demented terriers, may be the key to a new class of magnetic sensors, enabling new, ultra-dense data storage devices.
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