Er:YAG laser
This article is licensed under the GNU Free Documentation License. It uses material from the Wikipedia article "Er:YAG_laser".

Er:YAG lasers are solid-state lasers whose lasing medium is erbium-doped yttrium aluminium garnet (Er:Y₃Al₅O₁₂). Er:YAG lasers typically emit light with a wavelength of 2940 nm, which is infrared. Unlike Nd:YAG lasers, the frequency of Er:YAG lasers is strongly absorbed by water due to atomic resonances. This limits its use in surgery and many other laser applications where water is present. Because of this limitation Er:YAG lasers are far less common than relatives such as Nd:YAG and Er:glass.

Er:YAG lasers have been used for laser resurfacing.^{citation needed} Example uses include treating acne scarring, deep rhytides, and melasma.

External links

• FDA-CDRH
• Er-YAG laser
• DOE about Er-YAG lasers 1994

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