Explore: Gas Lasers

at 1.15 micrometres. Gas lasers using many gases have been built and used for many purposes. Carbon dioxide lasers, or CO2 lasers can emit hundreds of

infrared at 1150 nm, and were the first gas lasers and the first lasers with continuous wave output. However, a laser that operated at visible wavelengths

costs. The two types of lasers commonly used are solid-state lasers (especially ruby lasers and Nd:YAG lasers) and gas lasers. The first type uses one

480 nm metal vapor, ionized gas lasers of helium-cadmium at 442 nm and 10–200 mW argon-ion lasers at 458 and 488 nm Lasers emitting wavelengths below 445 nm

laser. Today, all such devices operating at frequencies higher than microwaves (approximately above 300 GHz) are called lasers (e.g. infrared lasers,

still one of the most useful types of laser. Carbon-dioxide lasers are the highest-power continuous-wave lasers that are currently available. They are

laser is a laser that uses a gain medium that is a solid, rather than a liquid as in dye lasers or a gas as in gas lasers. Semiconductor-based lasers

Nd:YAG laser is used where very high power is needed and for boring and engraving. Both CO2 and Nd/Nd:YAG lasers can be used for welding. CO2 lasers are

ion laser is a gas laser that uses an ionized gas as its lasing medium. Like other gas lasers, ion lasers feature a sealed cavity containing the laser medium

powering most diode lasers, this class of lasers is sometimes termed injection lasers, or injection laser diodes (ILD). As diode lasers are semiconductor