Next-generation optical disk "5-dimensional disk" that realizes a large capacity of 2000 times as large as the DVD comes out, overwhelming Blu-ray and others

At the end of last month at GIGAZINE"Holographic disk" which realized a large capacity of 500 GB which is 20 times the size of a single layer Blu-ray disc has appearedWe have told you that "boasts an overwhelmingly superior recording capacity"5D diskIt was revealed that things like "will come out.

Although it is thought that it is supposed to be replaced by HDD and flash memory which remarkably increase in capacity, it is likely to become active as a recording medium still more.

Details are as follows.
Researchers to create next gen discs

According to this release, the research team of Swinburne Institute of Technology in Melbourne, Australia has developed a technology that stores data up to 2000 times the DVD with the same size optical disc as DVD.

By adopting nanoparticles in the disk, this can be applied to the three dimensional recording system adopted by the holographic disk, a recording system using lasers of various different wavelength colors, and a recording system using a laser light In which the direction of the electric field contained in the disk is along the nanoparticle so that recording in five dimensions becomes possible by adding a method capable of recording different information from different angles without interfering with each other.

An image diagram of recording data using lasers of different wavelengths.


Although it is said that it can store large volumes of data by recording in 5 dimensions, the writing speed etc is a problem at the present time, researchers expect to take 5-10 years for commercial use It is.

According to the link below, this technology is compatible with current disk drive technology, and it is said that 1.6 TB of recording capacity is realized at present. Also, it seems that an agreement with Samsung was concluded in the research.

IEEE Spectrum: Five-Dimensional DVD Could Store 1.6 Terabytes