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 _______________________________________________ time-nuts mailing list -- time-nuts@febo.com To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions there.
