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UV Laser Marking

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What Is A UV Laser?

A UV laser is any laser that emits light in the ultraviolet (UV) range. This can include gas lasers, laser diodes, and solid-state lasers, as well as the specialized excimer lasers used for LASIK eye surgery and other intricate tasks. Nitrogen gas lasers excite nitrogen molecules electronically to emit UV beams with wavelengths between 337.1 nm and 357.6 nm. Wavelengths up to 375 nm can be created by direct UV-emitting laser diodes. These diodes typically incorporate lithium-strontium-aluminum-fluoride doped cerium crystals. DPSS (diode-pumped solid-state) lasers can generate UV beams with wavelengths as short as 262 nm.

UV Laser Marking

Using UV lasers, permanent markings and/or engravings can be added to metal and plastic parts. The power density of the laser is carefully adjusted depending on the material being marked. When focuse