Does the color of the laser make any difference?

TEA (Transverse Excitation at Atmospheric pressure) Laser, Home made.

I plan to get around to this soon. Ridiculously simple Nitrogen (atmospheric, open air) 320nm UV laser, built from aluminum angle iron, vellum, and foil.

What you then do is use a UV laser (several) to "Pump" a dye cell, and you can produce HIGH (tens, even hundreds) of watts energy beams....

http://www.sparkbangbuzz.com/tealaser/tealaser7.htm

Wow that is so cool would lie to see a video ;)