Re: Very high frequencies

["Tesla list" <tesla-at-pupman-dot-com>]

Original poster: "Jan Florian Wagner by way of Terry Fritz <twftesla-at-qwest-dot-net>" <jwagner-at-cc.hut.fi>


> what would be the result of a tc or other electrical device that put out
> high voltages at the frequencies of visible light? would you be able to
> see the electric field around the coil in the form of visible light?
> maybe this sounds crazy, but if you could do it, it would probably look
> pretty spacatular.

Well, light IS an oscillating electric field. Just like radio
waves. No difference between them, except for the frequency.

So yes, you could see it. Maybe the closes device to doing this is a
quantum well laser - it runs from DC current (but, it IS resonant). Or
some optically pumped laser which uses resonance of the atoms (t.ex.
helium) to get a very powerful field as the output.

Of course, this isn't what you expected... ;o) 
No big Tesla coil that glows.

The frequency of visible light is pretty high, terahertz region. It is
impossible to make a Tesla coil (coiled up wire and all) that would
resonate at these frequencies - on reason is because the TC is just
way too big. It would have to be in the scale of a few nanometres...

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