532nm
532nm green laser is the most common type of DPSS laser. It is generated in an indirect process, beginning wtih a high power infrared AlGaAs laser diode operating at 808nm. The 808nm light pumps a crystal of neodymium-doped yttrium aluminum vanadate (Nd:YVO4) (or Nd:YAG or less common Nd:YLF), which lases deeper in the infrared at 1064 nm. This lasing action is due to an electronic transition in the fluorescent neodymium ion, Nd(III), which is present in all of these crystals.
Human eyes are most sensitive to 532nm green laser. 532nm is the most visible and brightest laser wavelength.
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