Noun
YAG (countable and uncountable, plural YAGs)
Initialism of yttrium aluminium garnet: a synthetic material used in lasers and formerly as an artificial gemstone.
Single-element thulium-doped YAG (Tm:YAG) lasers operate between 1930 and 2040 nm. citation The wavelength of thulium-based lasers is very efficient for superficial ablation of tissue, with minimal coagulation depth in air or in water. Source: Internet
Due to its fairly high refractive index, YAG was used as a diamond simulant in the 1970s until the methods of producing the more advanced simulant cubic zirconia in commercial quantities were developed. Source: Internet
Holmium -doped YAG crystals emit at 2097 nm and form an efficient laser operating at infrared wavelengths strongly absorbed by water-bearing tissues. Source: Internet