Thorlabs has a line of Laser Line Mirrors for Nd:YAG, Ar-Ion, Kr-Ion, excimer, and CO2 lasers. These mirrors are specially designed to withstand the high-intensity beams typically produced by these laser systems.
*Prices are pre-tax. They exclude delivery charges and customs duties and do not include additional charges for installation or activation options. Prices are indicative only and may vary by country, with changes to the cost of raw materials and exchange rates.