Holographic Storage a Reality in 2006? 214
vitaly.friedman writes "What do you do when you're getting close to the limits of 2-dimensional optical technology? Well, how many dimensions do we have to work with?" From the Ars Technica article: "How much greater data density? In the Hitachi Maxell device, a single disc about 1 cm larger in diameter than a CD will buy you 300GB. By way of contrast, HD-DVD currently offers a maximum of 30GB on a 2-layer disc, and Blu-ray tops out at 50GB. Although upgrades are in the works that promise to increase the capacity of both of those formats, even the most pie-in-the-sky predictions fall short of what is planned for merely the first commercial generation of holographic storage. Future plans for that medium include boosting the capacity to 800GB in two years, and 1.6TB per disc by 2010."
Re:1 CM larger? (Score:4, Informative)
Re:I don't want a disc 1cm larger than a CD!!! (Score:5, Informative)
It says at the end that the consumer version they are looking at would most likely be the size of a postage stamp and have 75G to 100G of storage.
Re:Better late than never... (Score:1, Informative)
Re:Hmm (Score:2, Informative)
With Holographic memory [wikipedia.org] it is a question of a beam being split then both beams being pointed to the same spot [wikipedia.org]. So to be Holographic memory you need the beam to be split then to hit the same point at different angles.
Re:1 CM larger? (Score:5, Informative)
Re:A backup solution (Score:3, Informative)
Sure if you leave it directly in the sun im sure it will degrade. If you put it in a case in a drawer, it will work just fine for atleast 5 years
Re:I don't want a disc 1cm larger than a CD!!! (Score:3, Informative)
and its the same size as a traditional CD
Re:1 CM larger? (Score:5, Informative)
http://www.inphase-tech.com/products/professional
You don't have to worry about inserting it into an ordinary CD/DVD drives because it's in a 135x153x11 mm cartridge. This is exactly the same dimensions of existing MO cartridges. I suppose one could cram one of their holo-cartridges into a MO drive or maybe if one had one of those ancient CD-ROMs that used a caddy...
I like this from the PDF: "Recording Format: Phase Conjugate Polytopic Holographic". Not sure what that means, exactly, but it sounds cool.
Iz
Re:Hmm (Score:3, Informative)
Re:I don't want a disc 1cm larger than a CD!!! (Score:5, Informative)
2.5cm dia. disc (assuming 0.5cm dia. spindle) = (4.91-0.2)cm^2*6.37(G/cm^2)=30.0027G
Damned good math there, man. Kudos.
And if I can get it in rewritable, all the better.
Re:A backup solution (Score:4, Informative)
Re:A backup solution (Score:3, Informative)