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UV nanosecond lasers operating at 266 nm and 355 nm are pulsed solid-state laser sources with pulse durations typically between 0.5 and 100 ns. They are generated by frequency conversion of the fundamental 1064 nm output from Q‑switched Nd:YAG or Nd:YVO₄ lasers.
These lasers are widely adopted in precision manufacturing and scientific research because the combination of short UV wavelength and nanosecond pulse width enables clean, heat‑affected‑zone (HAZ)‑free material processing via photoablation and photochemical decomposition.
The core component of the 266nm UV laser is a diode-pumped solid-state laser. It consists of a laser medium, a pump source and an optical cavity. The laser medium usually uses Nd:YAG (neodymium-doped alumina yttrium) crystals, while the pump source uses a high-power diode laser.
In the working process, the laser generated by the pump source is focused by the optical system and input into the laser medium. The laser medium converts the pumped laser into a higher energy laser through the process of stimulated radiation. After many reflections and amplification, the final ultraviolet laser output of 266nm wavelength is formed.
355nm YAG UV laser is an efficient and versatile laser device with a wide range of applications. It uses Nd:YAG crystal as the laser medium and triple frequency doubling technology to convert the 1064nm infrared laser to a 355nm ultraviolet laser. 355nm UV laser has high energy density, a short wavelength, and unique optical effects. It is stable and reliable, making it suitable for microelectronics processing, material processing, scientific research, and medical cosmetology. The laser enables high precise and efficient processing, advancing technology and innovation in various industries.
