Title :
Parallel readout of multi-layer optical disks recorded with a blue laser
Author_Institution :
Call/Recall Inc., San Diego, CA, USA
Abstract :
Two-photon absorption provides a means to record multiple data layers in one disk. Media properties such as non-reflective fluorescent written spots, unnoticeable index change and separated recording and readout absorption spectra make it possible to envision high data capacity disk systems with this approach. Based on experimental evidence we project the data capacity of a 120 mm diameter 10 mm thick disks to exceed 250 GB. By using parallel readout of this type of disk media data rates of Gbit/s should become possible
Keywords :
fluorescence; optical disc storage; optical multilayers; two-photon processes; 250 GB; areal storage density; blue laser recorded disks; broadband fluorescence; high data capacity disk systems; multilayer optical disks; multiple data layers; nonreflective fluorescent written spots; parallel readout; recording efficiency; separated spectra; two-photon absorption; two-photon recording; DVD; Disk recording; Electromagnetic wave absorption; Fluorescence; Laser beams; Laser excitation; Optical beams; Optical crosstalk; Optical recording; Power lasers;
Conference_Titel :
Lasers and Electro-Optics Society, 2001. LEOS 2001. The 14th Annual Meeting of the IEEE
Conference_Location :
San Diego, CA
Print_ISBN :
0-7803-7105-4
DOI :
10.1109/LEOS.2001.968964
