Scientists have found a way to increase the speed of electronics millions of times
A group of researchers showed how the transfer of electrons can be accelerated with the help of light pulses, and in this way they were able to switch electron currents at a speed of about 600 attoseconds (10-18).
Components of modern electronics, usually based on semiconductor technologies, are able to turn on or off in picoseconds (10-12). At the same time, ordinary mobile phones and computers operate at maximum frequencies of several gigahertz, and only individual transistors can approach terahertz values. Further increasing the vibration speed is challenging.
However, scientists from the Universities of Constanta, Paris-South, Luxembourg, the Center for Materials Physics and the Donostia International Physics Center have developed an experimental setup for manipulating the movement of electrons using ultrashort light pulses..
It consisted of nanoscale gold antennas and an ultrafast laser, emitting 100 million single-cycle pulses of light per second to generate the measured current. Optical antenna butterfly fixed the subwave and subcyclic spatio-temporal concentration of the pulse electric field in a gap 6 nm wide.
As a result of nonlinear tunneling of electrons from the metal and acceleration in the gap optical field researchers managed to switch electronic currents at a speed about 600 atoseconds. This process takes place on a time scale of less than half of the oscillation period of the light pulse..
According to scientists, in in the distant future, this technology will allow the creation of electronics operating at the speed of light.
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We also previously reported on the development of a quantum battery model that can operate without wasting energy..
text: Ilya Bauer, photo: University of Konstanz