Jitter-free multi-layered nanoparticles optical storage disk with buffer ring.
A multi-layered nanoparticles optical disk has been developed for a jitter-free high-density data storage system. The disk has nano structures composed of 300-nm-diameter photosensitive particles and 30-nm-width non-photosensitive buffer rings around them. With the buffer rings into the nanoparticles disk, a conventional confocal microscope equipped with a low numerical aperture (NA) objective picked up a particle's shape signal to generate a synchronous signal on its own. In the three-dimensional structured disk proposed, no electronically-produced reference signal is necessary for clock data recover (CDR); no jitter occurs in data decoding.
Egami
Chikara
C
Faculty of Engineering, Shizuoka University, 3-5-1 Johoku, Naka-ku Hamamatsu, 432-8561, Japan.
Nishimura
Naoto
N
Okawa
Takuya
T