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The old Amateur Scientist column in Scientific American had (in June 1974, half a century ago) an installment on how to build a pulsed nitrogen laser. It wasn't that hard. The emission is in the ultraviolet.

https://www.jstor.org/stable/24950104

https://diverdi.colostate.edu/C431/experiments/time%20domain...

https://www.jonsinger.org/jossresearch/lasers/nitrogen/circu...

https://www.youtube.com/watch?v=pCnXftuJ9Zo




Look at how cool the last guy's home lab is! I sincerely hope that we are encouraging high schoolers to get into this kind of stuff.


Possible new power source for UV lithography for semiconductor manufacturing. No more hitting tin with a laser many?


No, the UV in cutting edge lithography is much shorter wavelength.


Specifically: Sn EUV sources emit at 13.5 nm.




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