3D optical data storage is given to any form of optical data storage in which information can be recorded and/or read with three dimensional resolution (as opposed to the two dimensional resolution afforded, for example, by CD,DVD. has the potential to provide terabyte-level mass storage on DVD-sized disks. Data recording and readback are achieved by focusing lasers within the medium., because of the volumetric nature of the data structure, the laser light must travel through other data points before it reaches the point where reading or recording is desired. Therefore, some kind of nonlinearity is required to ensure that these other data points do not interfere with the addressing of the desired point.


read more about 3D-OPTICAL DATA STORAGE TECHNOLOGY http://en.wikipediawiki/3D_optical_data_storage
http://riken.jp/lab-www/library/publicat...49_052.pdf
http://rsc.qut.edu.au/studentsstaff/trai..._Sando.pdf

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