Er:YAG laser

An Er:YAG laser (erbium-doped yttrium aluminium garnet laser, erbium YAG laser) is a solid-state laser whose active laser medium is erbium-doped yttrium aluminium garnet (Er:Y₃Al₅O₁₂). Er:YAG lasers typically emit light with a wavelength of 2940 nm, which is infrared light.

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