Hi > On Nov 2, 2014, at 6:59 PM, John Miles <[email protected]> wrote: > >>> >>> Yes, but your Q will suffer. >> >> Ok, so it might / might not work depending on how high a Q it needs to start >> functioning. I think I might try it before I went crazy coating he bulb. >> There will >> be a *lot* of weird things to debug and associated tear downs to find them. >> Having a fragile bulb coating to deal with on top of everything else might >> just >> be more than can be dealt with. > > With lower Q, you should still be able to get some usable discriminator > action in passive mode. In that scenario an external 1420 MHz pump signal is > needed to maintain the stimulated-emission process while new H atoms are > coming into the storage bulb. I imagine you'll want to try that at first, > in any event, just so you can observe the hardware actually doing something. > You should see some signs of frequency discrimination long before you observe > self-sustaining radiation, if I understand the process right. > > Once the line width is narrow enough, through a combination of the right > inlet pressure, bulb coating, cavity Q, and intercession from St. Ramsey, > thermal energy is enough to sustain the "chain reaction." In other words, > photons from random spontaneous-emission occurrences will be retained in the > cavity rather than lost, leading to coherent stimulated emission without any > outside help. But the odds of getting all of those factors right the first > time don't seem good.
Yes, exactly. Way to many variables to expect it all to “just come together”. To many things like an un-noticed 60 Hz field to mess you up. Not that anyone I know has ever had that problem ….. (in the last say week …). Bob > > -- john, KE5FX > Miles Design LLC > > > _______________________________________________ > time-nuts mailing list -- [email protected] > To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts > and follow the instructions there. _______________________________________________ time-nuts mailing list -- [email protected] To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions there.
