Transistors that form chips use electricity, that is, electrons. If we change this energy for light pulses, we get phototransistors that operate to 1 petahercioone million gigahecks.
It seems science fiction, but these phototransistors already exist. They have been created by international researchers, including scientists at the University of Arizona (United States). They have designed a revolutionary technique that allow bits to be transmitted almost instantaneously, through ultra -granted pulses.
The use of light to transmit information is very common. Without going any further, it is the method that uses the optical fiber. But if we apply it to transistors, we get its performance in various magnitudes.
This is how a phototransistor of 1 petheercio works
Mohammed Hassan
In the previous image you can see how this is Coalnstor de un petaherciodeveloped by the Professor of Optical Sciences Mohamed Hassan, and the graduated student Mohamed Sennary.
What this revolutionary device does is manipulate electrons in graphene by light pulses that last less than one billionth of a second. Taking advantage of a quantum effect known as TunnelizationThey recorded electrons by raffling a physical barrier almost instantly.
The study, published in Nature, has calculated that the speed reached by this phototransistor is 1 Petahercio (1 PHz)that is, one million GHz. With these transistors a processor could be built million times more powerful than the current ones.
Professor Mohamed Hassan is a world expert in the optical manipulation of light, since he is also the fastest electronic microscope creator in the world.
The discovery was carried out by chance. Or, as often happens in science, an investigation derives towards another completely different path.
As reported Physthese researchers were studying The electrical conductivity of graphene. They used a laser that, by illuminating the material, excites electrons and generates a current.
Due to the symmetric atomic structure of graphene, these currents are reflected with each other and cancel. Professor Hassan occurred, instead of reflecting the electron stream, isolating a single electron. This «tunnelization» of the electron within modified graphene samples is what allows the phototransistor to be created at 1 PHz.
The possibility of designing a CPU million times faster than current ones, using Light pulse transistors that operate at 1 petahercioit is already a reality. Now it is necessary to apply it to a commercial version that can be manufactured in series.
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Tags: Viral, curiosities, hardware, CPU, processors