Recent content by nanovrej

Thanks, I'm still reading that Sam's FAQ. It is an impressive site.

Hi, it's the first time I'm posting. I bought a HeNe Spectra-physics 105-1 10mW laser recently as a collectors item. I guess your could say I'm a amateur chemist/physicist. 1. I got the impression that a lasing tube needs to have a specific length. In other words, if you have a 632.8nm light...