Holographic Storage FIGURE 3. MH1OO is the first commercially available holographic memory product.FIGURE 4. Different hardware approaches to data storage are classified with http://silver.neep.wisc.edu/~lakes/hoStorage.html
Extractions: Scanned, filtered by optical character recognition. For further details please see the original article. This resource is intended for engineering students. Science Center, Thousand Oaks, CA 91360. DEMETRI PSALTIS is professor of electrical engineering and executive officer of Computational and Neural Systems at the California Institute of Technology, Pasadena, CA 91125. JOHN H. HONG is manager of optical information processing at Rockwell Wlth three-dimensional recording and parallel data readout, holographic memories can outperform existing optical storage techniques. In its basic form, a hologram is the photographic record of the spatial interference pattern created by the mixing of two coherent laser beams. One of the beams usually carries spatial information and is labeled the "object" beam. The other is distinguished by its particular direction of travel and is labeled the "reference" beam. Illuminating the recorded hologram with the reference beam will yield or reconstruct the object beam and vice versa. As the holographic material becomes thicker, the reconstruction becomes very sensitive to the particular angle of incidence of the reference beam, which allows multiple objects to be recorded in the same volume and accessed independently by using an appropriate set of associated reference beams. Such holograms would be recorded sequentially, each object beam illuminating the holographic material simultaneously with its unique reference beam.
Holographic Data Storage IBM Journal of Research and Development 443 - Directions in information technology - holographic data storage - Feature paper by describing the hardware aspects of holographic storage, including http://www.research.ibm.com/journal/rd/443/ashley.html
Extractions: Directions in information technology HTML PDF ASCII This article: HTML PDF ASCII by J. Ashley , M.-P. Bernal , G. W. Burr , H. Coufal , H. Guenther , J. A. Hoffnagle , C. M. Jefferson , B. Marcus , R. M. Macfarlane , R. M. Shelby , and G. T. Sincerbox We present an overview of our research effort on volume holographic digital data storage. Innovations, developments, and new insights gained in the design and operation of working storage platforms, novel optical components and techniques, data coding and signal processing algorithms, systems tradeoffs, materials testing and tradeoffs, and photon-gated storage materials are summarized. With its omnipresent computers, all connected via the Internet, the Information Age has led to an explosion of information available to users. The decreasing cost of storing data, and the increasing storage capacities of the same small device footprint, have been key enablers of this revolution. While current storage needs are being met, storage technologies must continue to improve in order to keep pace with the rapidly increasing demand. However, both magnetic and conventional optical data storage technologies, where individual bits are stored as distinct magnetic or optical changes on the
BYTE.com goal of a practical storage density of 10 GB per cubic cm, but it s sufficient topursue the development of holographic Data storage System (HDSS) hardware. http://www.byte.com/art/9604/sec7/art2.htm
Extractions: Text only April 1996 Cover Story When Silicon Hits Its Limits, What's Next? / Creating Holographic Storage A research team at IBM's Almaden Research Center has built a precision Photorefractive Information Storage Materials (PRISM) test stand for evaluating photosensitive samples. It also illustrates the fundamental components of a holographic storage system, as shown in the figure The device first splits a blue-green argon laser beam into separate reference and object beams. The object beam, which carries the data, gets expanded so that it fully illuminates a spatial light modulator (SLM). An SLM is simply an LCD panel that displays a page of raw binary data as an array of clear or dark pixels. The object beam finally interacts with the reference beam inside a photosensitive crystal. The ensuing interference patternthe substance of the hologramgets stored as a web of varying optical characteristics inside this crystal. To read out the data, the reference beam again illuminates the crystal. The stored interference pattern diffracts the reference beam's light so that it reconstructs the checkerboard image of the light or dark pixels. The image is directed upon a charge-coupled device (CCD) sensor array, and it instantly captures the entire digital page.
EE Times -Holographic Storage Nears Debut that time, hardware advances carried out independent of holography have made holographic storage more achievable said the holographic storage announcements he's heard have been http://www.eetimes.com/story/OEG20010423S0113
Extractions: April 26, 2001 (10:59 AM EDT) or more than 20 years researchers worldwide have pursued the Holy Grail of holographic data storage, an optical method of storing massive amounts of data in small areas by writing data as light patterns in three dimensions on a filmlike medium. During that time, hardware advances carried out independent of holography have made holographic storage more achievable. These include such improvements as CMOS sensor technology, development of spatial light modulators using ferroelectric liquid crystals and mirror arrays, and reduction in the cost and size of shorter wavelength green lasers. Yet the biggest challenge has been to find the right material for the recording medium, one that works and is inexpensive enough to produce commercially. In the last year, some research groups at universities, corporations, government labs and startups claimed to have found the material that will propel the technology forward and enable its adoption in commercial storage media products in two to three years.
New Deals Boost Developments In Holographic Storage spinout, meanwhile, will use the Manhattan Scientific patents to enhance the performanceof its holographic storage media and to build a hardware platform that http://www.eetimes.com/printableArticle?doc_id=OEG20021206S0020
Extractions: December 06, 2002 (11:19 AM EST) InPhase Technologies Inc. (Longmont, Colo.) received a $2 million grant from the U.S. government's Advanced Technology Program to develop and demonstrate rewritable recording materials for holographic data storage systems. Separately, Aprilis Inc. (Cambridge, Mass.) acquired 21 patents belonging to Manhattan Scientific Inc., a Los Alamos, N.M., company that tried but failed to commercialize a holographic data storage system. Analysts hailed the developments as boding well for holographic data storage, a 40-year old technology that offers the promise of ultrahigh storage densities and data access rates, but which no company has yet successfully commercialized.
Holographic Storage Nears Debut During that time, hardware advances carried out independent of holographyhave made holographic storage more achievable. These include http://www.eetimes.com/article/printableArticle.jhtml?articleID=18305624&url_pre
Extractions: The New Data Storage Frontier will be 3 D Volume Rewritable Atomic Holographic Removable Disk Drives FREMONT, Calif. Colossal Storage has exclusively licensed two U.S. Patents, # 6,028,835 2/22/00 Delphion and # 6,046,973 4/4/00 Delphion , for An Integrated Read/Write Head using a Non-contact UV/Deep Blue Laser Diode with Electric Fields for ferroelectric optical media. Colossal Storage is a rewritable volume atomic holographic optical data storage company that intends to design, continue to patent , and market its 3D volume holographic optical storage disk drive Published nanoTechnology Abstract Colossal Storage Corporation has dominant patents the first patents issued in any field that details the discovery of something totally new. The company wants to start off first proving recording densities of 200 gbits/cu.in and going up from there to maximum of 40,000 Terabits/cu.cm. or 40,000,000 Gigabits/cu.cm. per 100 molecule vertical layers with billions of molecule layers being realized. Colossal's Licensed Nanotechnology will allow the company to be a yearly Multi Multi Billion Dollar disruptive, exotic, and cutting edge company.
Getting Holographic InPhase has been working on holographic storage for several years, first introducing a year for developers of holographicstorage hardware, including most current manufacturers of http://rdre1.inktomi.com/click?u=http://emusician.com/ar/emusic_getting_holograp
Extractions: View UK websites Computer active Computer Reseller News Computing Infomatics Information World Review IT Week Network IT Week Personal Computer World PC Magazine vnunet.com Web active What PC? Register Update details HOME NEWS ... More... All articles News Reviews Downloads Jobs Forums White Papers Site map vnunet.com Analysis Business hardware ... send to friend Also read News centre Job of the day More from vnunet.com ADVERTISEMENT To many, holograms are either those silver pictures of William Shakespeare on your credit card or something off Star Trek. But the technology may finally move out of the realms of sci-fi novelty and into storage. Rene Millman, vnunet.com 26 Feb 2001 ADVERTISEMENT To many, holograms are either those silver pictures of William Shakespeare on your credit card or something off Star Trek. But the technology may finally move out of the realms of sci-fi novelty and into storage. The demand for storage in the enterprise is increasing rapidly, as is the need for cheaper technology with more capacity. Until now, improvements made in magnetic storage technologies have met the mounting requirements, but some experts are suggesting that holographic storage could provide a cheaper solution.
Extractions: Abstract. Computing applications continue to put increasing demands on secondary storage systems. These demands can be met by optical solutions such as volume holographic memories which promise to provide the high storage capacities and data rates required by many input/output intensive applications. Holographic memories appear especially suited for large database storage because of their page format and fast associative recall ability. This paper presents a volume holographic database system that is being implemented in our laboratory. The discussion includes description of the optical system as well as the development and analysis of an error-correcting code suitable for the application. Also presented are experimental results in which good associative addressability is achieved for search arguments as small as 1/30 of a page. Keywords: Holographic memories, Optical memories, Optical associative memories, Database processing, Error-correcting codes.
Extractions: 3 D Volume Atomic Holographic Data Storage nanoTechnology Concepts The Rewritable 3D Volume Holographic Removable Disk / Tape / Drum / Card Data Storage is a new frontier. The history of Storage Past, Present, and Future by C David Wright University of Exeter 5 exabytes of new data is generated every year world wide and growing ! Colossal Storage Corporation has dominant patents the first patents issued in any field that details a totally new concept for a Ultra-Violet/Deep Blue Laser integrated semiconductor R/W Head used for non-contact rewritable volume data to a ferroelectric optical holographic removable disk/tape/drum/card/film/plate drive storage product will be explained, biography of the inventor Colossal Storage wants its Rewritable 3D Volume Atomic Holographic Removable Optical Storage NanoTechnology to be an " ALL IN ONE " Storage Solution replacing Ram Drives, Ovonic Drives, Flash Drives, 2D Optical Drives(phase change/MO DVD), Video Disk Drives, iVTR Drives, Blu-Ray, EVD, Tape Drives, AFM/ATF and Hard Drives for " ALL IN ONE " complete system hardware storage requirements. Colossal's Licensed Nanotechnology will allow the company to be a yearly Multi Multi Billion Dollar disruptive, exotic, and cutting edge company.
Holographic Storage Nears Debut medium. During that time, hardware advances carried out independent ofholography have made holographic storage more achievable. These http://colossalstorage.net/eetimes.htm
Extractions: (04/26/01, 10:59 a.m. EST) or more than 20 years researchers worldwide have pursued the Holy Grail of holographic data storage, an optical method of storing massive amounts of data in small areas by writing data as light patterns in three dimensions on a filmlike medium. During that time, hardware advances carried out independent of holography have made holographic storage more achievable. These include such improvements as CMOS sensor technology, development of spatial light modulators using ferroelectric liquid crystals and mirror arrays, and reduction in the cost and size of shorter wavelength green lasers. Yet the biggest challenge has been to find the right material for the recording medium, one that works and is inexpensive enough to produce commercially. In the last year, some research groups at universities, corporations, government labs and startups claimed to have found the material that will propel the technology forward and enable its adoption in commercial storage media products in two to three years.
Compliance Is Not An Option, But Storage Media Is to develop a system where users can simply plug in new hardware when the Gascon admits,the next storage medium is likely to be holographic storage, and the http://www.intranetjournal.com/articles/200403/pij_03_16_04a.html
Extractions: document.write(''); Compliance with the increasing number of federal and industry guidelines for records retention has opened up an entirely new market for software vendors. But at the heart of the matter is storage, and the hardware and software that will keep records safe and secure years into the future. Storing records for business is nothing new. Heavily regulated industries such as pharmaceuticals and financial services have been subject to strict record-retention mandates for years. What has changed, of course, are the audit trails required in Sarbanes-Oxley and high-profile legal cases involving the retention or misplacement of electronic communications. Every vendor agrees that despite the ubiquitous solutions being marketed for corporate compliance, compliance is a business issue that cannot be solved by technology alone. "Compliance is a big word," said Stephen Ellis, vice president of business development for Permabit, which makes software for content-addressed storage. "Compliance is a very complicated strategy for customers. In the end, IT is only part of the solution. It has to be combined with many other things."
Compliance Is Not An Option, But Storage Media Is But before we make plans to replace magnetic disks with holographic technology,one Lawrence figures that for every $1 spent on storage hardware, $5 to $7 is http://www.intranetjournal.com/articles/200403/ij_03_16_04b.html