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Is it possible to build a pulsed CO2 laser pointer? I bet I'd need: 1. A glass tube with gold mirror at one end and a semi-gilded mirror at the other, filled with CO2 (of course!) 2. A zinc selenide window 3. A device to Q-switch it (either by rotating the semi-gilded mirror or some type of...

Hi! I'm looking to burn things like matchs, wood, paper, maybe cut aluminum foil, what type of laser pointer should I buy? IR, red, green, blue, violet, UV? Which would be more powerful at cutting things, a 400 mW IR laser, or a 400 mW UV laser? I know they don't make UV pointers, but...maybe...