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FrozenGate by Avery

Make your own Laser spectrometer !

A larger line density corresponds to a smaller slit which corresponds to a larger spread and thus a greater resolution. I would buy the grating with the larger line density.
 
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I have also used CFL bulbs and even the sky when I cannot find any neon lamps or 532nm lasers. Their spectra are available of wikipedia.
 
Hi,

I just joined and I've spent the last half-hour poking around trying to figure out affordable ways to test (characterize) my lasers before I outfit my home lab. This tutorial is very encouraging. It proves that everything doesn't have to be expensive and that I can make due on a monthly laser budget and just take it one step at a time until the lab is full outfitted.

Thanks,
RP
 
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