How could one convert radio waves into visible light? I think we can figure this out.?

Question

this could extemely extend the limits of comunication

Answer 1

It'd be pretty complicated, but one way might be...

Use the radio waves to heat something. Connect a heat engine between the warmed object and one at room temperature. Use the heat engine to run a generator. Use the generator to charge a battery, and then connect the battery to a light bulb (or laser, or some other thing that emits visible light). Voila!

Another way you might be considering is something analogous to frequency doubling-- shine laser light of some wavelength on a crystal, and out from the other end comes laser light with double (or sometimes triple) the frequency. This won't work with radio waves because they simply don't have enough energy. Frequency doubling works because of nonlinear effects that take place in the crystal. Radio waves are not energetic enough to produce nonlinear effects.

Answer 2

why not creating a simple conversion method ... by receiving radio waves - transforming them in el. impulses which should triger some sort of circut which lead to light emitions ... with corresponding parameters to the inputed radio wave.

Answer 3

Umm why would you want to? Visible light doesnt pass through walls or any objects at all and so would become useless... and I do believe the electric lamp has been invented already.

Answer 4

You would need a way to increase the frequency and decrease the wavelength.

Answer 5

Can't. They are in different places in the Spectrum.

Answer 6

change the wave length

Answer 7

What limits of communication do we have?

Answer 8

Get everyone really stoned