DVDs made of gold can hold up to 2,000 movies

New material technology can help store 2,000 movies in a DVD made of gold, 10,000 times larger than the current capacity of DVDs.

The new method is called 5-D data storage technology using nanotechnology. This is the result of the latest research by scientists working at Swinburne University of Technology, Australia.

"We will introduce to the world the capabilities of nanostructured materials, which can increase the storage capacity without changing the physical size of the DVD," said lead researcher Min Gu. With the type of DVDs the team is developing, the data is stored in multi-dimensional space, while the popular DVDs now store data in three dimensions.

DVDs made of gold nanowires can be up to 10,000 times larger than conventional DVDs.

Min Gu said that with the gold nanoparticles manufactured by the Melbourne team, his team could add a way to encode data based on polarization of light, besides encoding. according to the current light spectrum.

This breakthrough opens the prospect of recording, storing information with different wavelengths on the same disk. Currently, new DVDs are only encoded by laser light (light at the same wavelength).

The processing of disk information (decoding) is called polarization. At that point, the degree of "reaction" to the light of the nanoparticles depends on their shape. "The process can take place all over the surface of a nanoparticle and so DVDs can store more information," said co-author James Chon .

According to Chon, it takes five years for the new team to perfect the technology and move into commercialization. However, all work related to the registration and protection of intellectual property was carried out by Samsung via Korea. The world's largest DVD disc can hold 100 times more data than a standard DVD, which is a product of General Electric, USA.