[time-nuts] homebrew maser

Heathkid heathkid at heathkid.com
Thu Sep 2 03:13:17 UTC 2010

>"Thank you for making a homebrew H-maser look simple! :)"

Magnus,  That was sort of my point.

Can "everyone" do it?  No.  Can one (or more) of us do it... absolutely! 
Especially if we work together on this.  The amount of knowledge I've 
already seen come out of this group *collectively* is impressive for lack of 
a better word.  Together... we can do anything!  Individually, we dream... 
spend lots of money and waste lots of time.  Maybe even make some progress. 
I read every post and take everything in.  Reading the "knowledge" oozing 
out in these emails is like a dream come true for me.  So, someone wants to 
homebrew a Hydrogen Maser... let's break it down and make it a reality. 
"Here is a good place to start"...

Thank you "time-nuts"!  Nothing is *impossible* and dreams sometimes do come 

----- Original Message ----- 
From: "Magnus Danielson" <magnus at rubidium.dyndns.org>
To: <time-nuts at febo.com>
Sent: Wednesday, September 01, 2010 2:51 PM
Subject: Re: [time-nuts] homebrew maser

> On 09/01/2010 04:11 AM, Heathkid wrote:
>> How about a "Laser-Cooled Mercury Ion Frequency Standard"?
>> http://tf.nist.gov/general/pdf/1225.pdf
> I have way too little liquid helium dewar flasks at all... but sure, it 
> would be fun. I would certainly see a bunch of challenges in mixing down 
> from about 40,5 GHz.
>> Here's another approach:
>> "A diode-laser optical frequency standard based on laser-cooled Ca
>> atoms:Sub-kilohertz spectroscopy by optical shelving detection"
>> http://www.nist.gov/customcf/get_pdf.cfm?pub_id=105042
> Yet more challenges. Getting the visible light lasers frequency-related to 
> something like 10 MHz or 100 MHz is a whole bunch of optical lab-bench and 
> lockings later. Few labs have dared to achieve it as far as I know. Who 
> else but PTB?
> Thank you for making a homebrew H-maser look simple! :)
> Cheers,
> Magnus
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