A gas laser is a type of laser that uses gas as its active medium. Gas lasers can be either microscopically or macroscopically collimated. Common gases used include helium, neon, argon, krypton, xenon, and hydrogen. Carbon dioxide and fluorine are also used in some types of gas lasers. Gas lasers typically have better beam quality than solid-state or fiber lasers since gas-active media can be pumped more efficiently than solid-state counterparts. As a result, gas lasers tend to generate higher power densities, which results in smaller beam diameters and lower divergence angles. Helium -Grade 4.6 or 99.996% purity; CO2-Grade 4.5 or 99.995% purity; Nitrogen-Grade 5.0 or 99.999% purity. Gas mixtures for excimer lasers often consist of halogens, noble gases (krypton, xenon or argon) and buffer gases (helium or neon). A modern carbon dioxide laser requires laser gases of high purity. Excessive amounts of impurities may affect the output of the laser. Ankur Speciality Gases provide Laser Gas for your industrials usages.