Er:YAG laser
Er:YAG laser
The Er:YAG laser (pronounced "er-yag laser") is a solid-state laser whose active laser medium is erbium-doped yttrium aluminium garnet (Er:Y3Al5O12).
Etymology
The name "Er:YAG laser" is derived from the elements used in its construction. "Er" stands for Erbium, a rare earth element used as the active laser medium. "YAG" stands for Yttrium Aluminium Garnet, which is the host crystal for the erbium.
Description
Er:YAG lasers typically emit light with a wavelength of 2940 nm, which is infrared light. This wavelength is highly absorbed in water, which makes the Er:YAG laser more suitable for applications that require precision without causing thermal damage.
Applications
Er:YAG lasers are commonly used in medical and dental procedures due to their ability to precisely remove thin layers of tissue. They are also used in dermatology for skin resurfacing and the treatment of acne scars.
Related Terms
- Laser: A device that emits light through a process of optical amplification based on the stimulated emission of electromagnetic radiation.
- Erbium: A chemical element used in the active laser medium of the Er:YAG laser.
- Yttrium Aluminium Garnet: The host crystal for the erbium in the Er:YAG laser.
- Medical: Pertaining to the practice of medicine.
- Dental: Pertaining to the teeth and their care.
- Dermatology: The branch of medicine dealing with the skin and its diseases.
- Acne: A common skin condition that causes spots and pimples.
External links
- Medical encyclopedia article on Er:YAG laser
- Wikipedia's article - Er:YAG laser
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