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by mrow84 3903 days ago
Is it possible for signals to propagate as waves, without the electrons moving between atoms? Kind of like in this gif, but without them hopping along?

https://cdn.sparkfun.com/assets/9/5/6/1/4/519fcd42ce395f804c...

1 comments

Yep! These are called plasmons[1]. They are sort of like sound waves for electrons, in that they are compression (i.e. longitudinal) waves.

[1]: https://en.wikipedia.org/wiki/Plasmon

Sweet, thanks. I see in the "possible applications" section of that wikipedia article it is stated that:

"Plasmons are being considered as a means of transmitting information on computer chips, since plasmons can support much higher frequencies (into the 100 THz range, while conventional wires become very lossy in the tens of GHz). However, for plasmon-based electronics to be useful, a plasmon-based amplifier analogous to the transistor, called a plasmonstor, first needs to be created."

So yeah, to all those applied physicists in the audience, hurry up and unleash the plasmonstor! (does anyone really call it that?)