Russian physicists have created a device that gives download thousands of movies per second – Moskovsky Komsomolets

Researchers from the Moscow State University have stepped forward

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Moscow with Australian scientists have come up with a basis for computers of the future – ultrafast photonic switch that operates on silicon nanostructures. This know-how, on the assertions of physics, will allow to speed up the transfer of data on many orders. For tactile clarity, it will download movies hundreds per second. On his successes, researchers told the «Nano Letters».

The device, which is a disk with a diameter of 250 nanometers, is able to switch the optical pulses in the time, numbering in femtoseconds (a femtosecond is a millionth of a billionth of a fraction of a second). Photo: press office of Moscow State University University / pubs.acs.org.

According to a press release from the Moscow State University. Lomonosov innovators have created nanoparticles by the method of electron-beam lithography with a further plasma etching. Ultimately, the international team of researchers has designed a kind of device that resembles a disc diameter of 250 nm. The device taught switched optical pulses in a few femtoseconds. (Fs = one millionth of a fraction of a billionth of a second).

«In their experimental study, we used a large set of different nonlinear optical techniques associated with the interaction of femtosecond laser pulses with matter – said the lead author of the research Maxim Shcherbakov. – We used femtosecond laser system, purchased under the program of development of the Moscow State University ».

According to Shcherbakova, photonic switch capable of accepting a pair of laser pulses. They are due to the presence of silicon nanoparticles from magnetic resonance interact with each other. When the data pulses are applied at the same time, the driving pulse begins to come into contact with the second, weakening its so-called “effect of the two-photon absorption».

However, it is momentum to do with the time lag of 100 femtoseconds, the interaction does not happen, so that other the momentum going through the nanostructure is not transformed by the.

Australian-Russian team of physicists claims that their know-how in the future will produce devices transmitting and processing data at speeds of hundreds of terabits / sec.

This development relates to the field of photonics. It rays of light do not interact with each other and with the propagation medium, why and capable ultra fast data transfer.