[time-nuts] IEEE Spectrum - Dec 2017 - article on chip-scale atomic frequency reference

Dana Whitlow k8yumdoober at gmail.com
Fri Dec 8 14:50:45 EST 2017


I saw that about the N atom trapped inside a C60 molecule, but also
took note of the present cost of the material.  I wonder how much is
going to be required to make a good standard.

Dana


On Fri, Dec 8, 2017 at 11:40 AM, Tom McDermott <tom.n5eg at gmail.com> wrote:

> There's an interesting article in the December 2017 issue of IEEE Spectrum.
>
> Researchers at Oxford U. have fabricated an atomic reference based on
> a single nitrogen molecule inside a 60-atom carbon sphere ("Fullerene").
> The cage of carbon isolates the nitrogen from external electric fields,
> and they've developed a method to also isolate it from external magnetic
> fields.
>
> They have not incorporated the material into a working standard, but have
> licensed the chemical fabrication technology to at least one manufacturer.
> The idea is to make a chip-scale atomic frequency reference.
>
> -- Tom, N5EG
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