Would it be a CO2 laser or a solid state laser ?
Can any of them operate in the green spectrum ?
A CO2 laser uses Carbon Dioxide as the lasing medium. It is the most powerful commercial laser available, and is often used to cut metal. It operates in the IR spectrum and is invisible to the human eye.
A solid state laser is similar to a LED, which is used in many home applications. For instance, you CD or DVD player has a solid state laser inside of it, for scanning the rotating disks.
Today, technology has produces some fairly high-powered solid state lasers at reduced cost.
Yes, solid state lasers are produced that operate in the green spectrum.
This specific green laser can be purchased for $189.00