Noble gas lasers are a type of gas laser that use noble gases, such as helium, neon, or argon, as the lasing medium. These gases are chemically inert, which means they do not react with other substances, making them stable and effective for laser applications. The laser operates by exciting the gas atoms with an electrical discharge, causing them to emit light at specific wavelengths. One common example of a noble gas laser is the helium-neon laser, which produces a red beam of light often used in laser pointers and barcode scanners. Noble gas lasers are known for their high-quality output and are utilized in various fields, including medical applications, industrial cutting, and scientific research.