Pioneer ultraviolet laser promises 500GB disks

cerberus and Wolfhour used our news submit to tell us that according to TheInquirer Pioneer has developed a technlogy that will fit 500
GB on an optical storage disc. The technology makes use of an ultraviolet laser.
The ultraviolet laser allows more data density than current red or blue laser
beams.




The paper reported that Pioneer uses the beam to
write data holes in a master disk, each separated by 70 nanometres. That
gives a data rate 20 times more than the blue laser Blue-ray disk.


While there are technical problems creating data cavities so
small, Pioneer has, apparently, solved problems associated with scattering
of the laser by developing a carbon mask using photosensitive
resin.

Source: TheInquirer