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Gas Laser
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A laser device used with CTP (computer-to-plate) systems that uses one or more gases, such as helium or helium and neon, as the lasing medium. Some common gas lasers include helium-neon lasers, argon-ion lasers, and carbon dioxide lasers. In another type of gas laser, the excimer laser (which is a combination of the words excited and dimers), reactive gases, such as chlorine and fluorine, are combined with inert gases, such as argon, krypton, or xenon. The material is given an electrical stimulation, producing a dimer (a molecule that consists of two simpler molecules that are identical) that generates ultraviolet light when the material is lased. Various types of gas lasers are used in the printing industry for digital imaging of printing plates.
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