Now that's optical storage

Subject: Storage | August 9, 2007 - 06:24 PM |
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How does femtosecond seek times on a hard drive sound?  It may not actually hit those speeds anytime soon, but switching to using polarized light to flip bits on a hard drive is certainly going to increase HDD speeds by a lot.  Read how they did what was previously thought impossible at Physics World.

"Physicists in Netherlands and Japan are the first to flip the value of a magnetic memory bit by firing a very short

pulse of circularly-polarized laser light at it. Unlike other magneto-optic data storage systems, no external

magnetic field was required to flip the bit, which meant that its value could be changed about 50 thousand times

faster than the fastest conventional memory. The result could lead to the development of low-cost and ultrafast

all-optical magnetic hard disk drives."

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