YAG laser crystal. A YAG (Yttrium-Aluminium Garnet) crystal synthesized for use in a laser ("light amplification by stimulated emission of radiation"). A radiation source is used to stimulate unstable atoms in the crystal to emit light at the same frequency as the source. This produces a beam of intense monochromatic coherent radiation,red light in the case of YAG. YAG laser crystals are often doped with neodymium (Nd- YAG) or thulium (Tm-YAG) and are used for cutting metal and as surgical tools | |
Lizenzart: | Lizenzpflichtig |
Credit: | Science Photo Library / Stammers, Sinclair |
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