5D-memoryScientists have managed to record information to quartz glass in five dimensions and extract it. Such technology allows to store enormous data in small volume within unlimited time.

The scientists from the University of Southampton, United Kingdom, together with the colleagues from the Eindhoven University of Technology, Netherlands, have managed for the first time to make a record to the quartz glass and then read this information – Phys.org reports.

The experimental memory was called “5D-memory” because information is written using five spatial characteristics: size of the nanostructure, its alignment, and its locations in the layer of the glass (by three axes).

In the course of the experiment the researches recorded a text file of 300 kb. This information was located into the thick layer of the quartz glass in the form of three levels of the dots located at a distance of 5 µm from each other.

The record was made with the help of femtosecond laser which is able to make very short and intensive impulses of the light.

The changes in the structure of the quartz glass change a polarization of passing though it light, and this gives an opportunity to read the written data in the glass. They can be written with the help of the optical microscope and polarizes filter like in Polaroid glasses.

5D-memory on the basis of the quartz glass is regarded a promising direction of the development of the electronic memory because it is able to contains a giant volume of information in the small volume. For instance, one optical disc designed on the basis of the described technology will be able to contain 360 Tb of information, i.e. about by 7 thousands times more in comparison with the up-to-date Blu-ray disk (two-layer disk, 50 GB).

Moreover, quartz is able to store the written information in the undamaged condition at the temperature up to 1000 °C and within almost unlimited period of time. This makes it suitable for the storage of the archives.

“We have managed to develop an extremely stable and safe memory on the basis of the glass which may be useful in the organizations dealing with storing of the big volumes of data. Now such organizations have to make backup copies of the archives every 5-10 years because data written on the hard disks are destroyed as time goes by” – said the head of the project Jingyu Zhang.

“Museums and archives which want to store information for centuries to come will be able to easily do it with the help of the memory of the new type” – Zhang added.

“It is difficult to imagine but we have developed the first document which will be able to outlive the humankind. Such document may be an evidence of the existence of the civilization and store everything we learn for other civilizations” – added one of the participants of the project professor Peter Kazansky.

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