Superconductor swicth switched in picoseconds:
A new high speed power switch?
cuprate crystal
Very specifically not a power switch. The Max Planck Institute that did the work has a more informative web page
and the whole point about the experiment is that the switching condition can't be sustained for any length of time without over-heating the cuprate - above 40K - and destroying the superconductivity.
Very interesting, all the same, if a bit too cold for liquid nitrogen (which boils at 77K at atmospheric pressure, and freezes at 63K).
-- Bill Sloman, Nijmegen
On a sunny day (Wed, 13 Jul 2011 07:57:41 +1000) it happened Bill Sloman wrote in :
cuprate crystal
Define 'power'. Seems you are a bit too conservative, so far the highest power THz radiation has been from an accelerator (a few hundered wats CW). There is some suspicion here about Podkletnovs latest experiments generating high power THz, and there are papers from Japan about THz radiation emanating from normal YCBO superconductors when you shine a laser on it. Even a few watt switching with their switch would be considered 'high power' with respect to the state of the art. And then one of teh researchers, Cavalleri himself, says (quote): This is a semiconductor whose ability to pass a current can be controlled by applying an electric voltage. Analogous to this, is conceivable that the high-temperature superconductor could be used as an ultrafast, nanoelectronic transistor that is controlled by microwaves.
Did you pay the 18$ for the original paper?
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