As faceted gems they are valued (as synthetics) for their clarity, durability, high refractive index and dispersion. Thanks to its high dispersion and refractive index, colorless YAG has been used to imitate diamonds. Yttrium Aluminum Garnet) has been and continue To download this data or our MSDS safety data sheet as a pdf, please click on the links at the top of the page. [citation needed] Such a mirror provides compensation of both phase and polarization aberrations induced into the loop resonator. Therefore, YAG is simply called a synthetic garnet.
Transparent YAG and pale pink Nd:YAG single crystals were produced by the Czochralski technique. A dual-mode Tm:YAG laser emits two frequencies separated by 1 GHz.
[1] Some demand exists as synthetic garnet, and for designs where the very high refractive index of cubic zirconia is not desirable. Samarium-doped YAG (Sm:YAG) is a temperature-sensitive phosphor similar to Dy:YAG. Ytterbium-doped YAG (Yb:YAG) is an active laser medium lasing at 1030 nm, with a broad, 18 nm wide absorption band at 940 nm.
YAG doped with neodymium and chromium (Nd:Cr:YAG or Nd/Cr:YAG) has absorption characteristics which are superior to Nd:YAG.
Production for the gem trade decreased after the introduction of synthetic cubic zirconia; as of 1995[update] there was little production. V. Lupei, , A. Lupei "Nd:YAG at its 50th anniversary: Still to learn" Journal of Luminescence 2015, Learn how and when to remove this template message, "ND:YAG crystal (neodymium doped yttrium aluminium garnet)", "An 115 W Yb:YAG planar waveguide laser fabricated via pulsed laser deposition", "Laser Performance of Yb-doped-Garnet Thin Films Grown by Pulsed Laser Deposition", https://en.wikipedia.org/w/index.php?title=Yttrium_aluminium_garnet&oldid=970022177, Creative Commons Attribution-ShareAlike License, usually colorless, but may be pink, red, orange, yellow, green, blue, purple, This page was last edited on 28 July 2020, at 19:25. The crystal structure was confirmed by XRD. Yb:YAG is a good substitute for 1064 nm Nd:YAG in high-power applications, and its frequency-doubled 515 nm version can replace the 514 nm argon lasers. Crystal structure. The Er:YAG laser wavelength couples well into water and body fluids, making this laser especially useful for medicine and dentistry uses; it is used for treatment of tooth enamel and in cosmetic surgery. Er:YAG operates at wavelengths where the threshold for eye damage is relatively high (since the light is absorbed before striking the retina), works well at room temperature, and has high slope efficiency. Are susceptible to radiation damage, starting with doses between 1 and 10 Gray (10² - 10³ rad).
Yttrium aluminium garnet (YAG, Y3Al5O12) is a synthetic crystalline material of the garnet group.