[time-nuts] Maser on a chip
Attila Kinali
attila at kinali.ch
Tue Jan 20 07:33:58 UTC 2015
On Sun, 18 Jan 2015 22:59:57 +0000
Mark Sims <holrum at hotmail.com> wrote:
> http://www.princeton.edu/main/news/archive/S42/13/37M75/index.xml
> Not much detail there... but there is an article in Science.
This maser is basically a variation of the quantum cascade laser,
using tunable quantum dots instead of hetero structures to define
the electron levels (think "particle in a box" where the box
can be electrically tuned).
>From the text it seems like that this is only a first demonstrator,
that the technology works. They drove the maser externally and measured
its response to it.
They got an output frequency of 7880MHz and a line width of 34kHz.
Attila Kinali
--
It is upon moral qualities that a society is ultimately founded. All
the prosperity and technological sophistication in the world is of no
use without that foundation.
-- Miss Matheson, The Diamond Age, Neil Stephenson
More information about the Time-nuts_lists.febo.com
mailing list