Author Topic: Population inversion and superradiance  (Read 2055 times)

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Re: Population inversion and superradiance
« Reply #5 on: January 25, 2016, 17:17:37 pm »
I haven't read the links, since there was no description of what they discuss.

However, I do think that a super radiant water vapor laser could provide a bright MW source.  Here's a link to a patent which shows the simplistic traveling wave laser cavity switch:

https://docs.google.com/viewer?url=patentimages.storage.googleapis.com/pdfs/US4178563.pdf

Quote
A system for generating an electrical signal of energy equal to at least 0.5 Joules for a time equal to 100 ns.

All it needs is a sealed channel for the low pressure vapor and an optional mirror at one end.

Also notice the small size and back-discharge blocking function of the choke coil.  (It passes the low frequency charging current, but not the high frequency pulse associated with the discharge.)

And here's a patent which shows an improved version of the laser:

https://docs.google.com/viewer?url=patentimages.storage.googleapis.com/pdfs/US4223278.pdf

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Re: Population inversion and superradiance
« Reply #6 on: January 25, 2016, 20:15:30 pm »

Ive been making my way thru the links , this is a goody .......  http://www.repairfaq.org/sam/lasercn2.htm

check out the table of contents = "water capacitor in a nitrogen lazer @ 35kv " >>


  "(The main storage cap is 89 nf, and I'm charging it to 35 kV. That's 50 J per pulse, and I'm dissipating it fairly swiftly in the "antenna"...) "

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Re: Population inversion and superradiance
« Reply #7 on: January 26, 2016, 00:46:11 am »
I was just droping some of the things i´m finding interesting...  i even may have overlooked many of it.. if you see something you like please comment!

Stephen horvath says he uses a 0,005% duty cycle pulse to generate gas on demand to run a car...

he talks about a depolarization pulse

well

look at meyer diagram up side down...

does not those doubled frequency pulses seems nanopulses?

isnt a capacitor a limited current source of voltage?


i was told that water is used in this pulse forming networks from many people

in the university here they showed to me how the particle accelerator circuit works some2 years ago but only now i understood how it worked..

they used a Blumlein circuit as the output for milion volts...

only now i understood why the pulse is so short..  and timed.. this accelerator was used for threating materials by electron irradiation... it has a filament that is heat and this start the discharge in the case.. .but only after its charged to milion volts by the pulse forming network.. the timing is so small because its enough for the electrons to cross all the cavity and reach the target on the other side...


the pulse forming netweork power supply uses towsands of 1n4007 diodes with a capacitor and resistor in parallel with it.. altohut it suport 1000v each they use it as it was 40v rated

it was a fulll wave voltage tripler or something... indeed very nice


http://spt06.chez-alice.fr/00/bleu40w.htm