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Neodymium is a crystal that is used as a lasing medium for some solid-state lasers. The 1,064 nm neodymium-doped yttrium aluminum garnet (Nd:YAG) laser emits monochromatic light in the near-infrared spectrum. Near-infrared lasers include other devices emitting wavelengths between 750 nm and 1,400 nm.
Near-infrared lasers include other devices emitting wavelengths between 750 nm and 1,400 nm. Joseph E. Geusic of Bell Laboratories first obtained infrared energy from the Nd:YAG crystal in 1964 (Geusic JE, Marcos M, van Uitert LG. Appl Phys Lett. 1964;4(10):182-184). A review of the properties of 1,064 nm light allows for better understanding of the versatility of Nd:YAG lasers.