[time-nuts] homebrew maser
heathkid at heathkid.com
Wed Sep 1 02:11:13 UTC 2010
How about a "Laser-Cooled Mercury Ion Frequency Standard"?
Here's another approach:
"A diode-laser optical frequency standard based on laser-cooled Ca
atoms:Sub-kilohertz spectroscopy by optical shelving detection"
----- Original Message -----
From: "John Miles" <jmiles at pop.net>
To: <jfor at quik.com>; "Discussion of precise time and frequency measurement"
<time-nuts at febo.com>
Sent: Tuesday, August 31, 2010 8:02 PM
Subject: Re: [time-nuts] homebrew maser
>> Microwave test gear and plumbing is very significantly harder to get at
>> GHz than at 1.4 GHz.
>> At a guess I've seen easily 100 times more stuff available at 1.4 GHz.
> That is so far down the list of "101 Things That Are Hard About Building a
> Hydrogen Maser" I'm not even sure it makes the top 101. :)
> There is a ton of prior art in the Amateur Radio microwave community on 24
> GHz microwave activity and construction. At 1.420 GHz, not so much.
> -- john, KE5FX
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