Graphene amplifier unlocks hidden frequencies in the electromagnetic spectrum

in news •  6 days ago 


Source

Terahertz (THz) waves are located between microwaves and infrared in the light frequency spectrum, but due to their low energy, scientists have not been able to harness their potential.

A team of physicists has created a new type of optical transistor that works as a THz amplifier, which uses graphene and a high temperature semiconductor.

This frequency amplifier will allow the use for the communications of the elusive wavelengths of terahertz, enabling revolutionary technologies.

The device connects to a power source. When THz radiation hits the outer graphene layer, it is amplified, giving it more power and energy than it had when it arrived.

This technology would open a new era of medical, communications, satellites, cosmological and other technologies, for example, a safe and non-destructive alternative to X-rays.

Source:phys.org, read original article
https://phys.org/news/2020-02-graphene-amplifier-hidden-frequencies-electromagnetic.html


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Maybe this is one step closer to subspace communication. :-)

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