UV nanosecond laser emits the UV laser whose with pulse widths between a few and hundreds of nanoseconds. It has the advantages of short wavelength, high peak power, high machining accuracy, good focusing and small thermal effects. UV nanosecond laser is the mainstream laser source in fine micromachining market and is commonly used for high quality marking, engraving, cutting, micropunching and surface microprocessing. 355nm UV nanosecond laser is the most common type of UV nanosecond laser.
At present, ultrafast lasers represented by picosecond and femtosecond laser is capturing the market for UV nanosecond laser. The ultra short pulse output by ultrafast laser can achieve extremely high peak power with lower pulse energy. It has obtained more and more attention from the market and has deeper applications in micromachining industry.
Laser processing uses the laser beam of high energy density to interact with substances and finish the cutting, punching, surface microprocessing and other fine microprocessing according to the action time .After decades of hard work and development, laser processing has covered almost all major high end manufacturing fields.
Inngu 355nm UV nanosecond laser has excellent beam quality (M²<1.2), pulse width of approximately 25 nanoseconds and focused spot of only about 20 microns diameter. The focused laser beam with high energy density can break the chemical bonds of some materials. This is a type of ‘cold’ processing method and there is only little thermal effect produced. It has the characteristics which IR laser lacks including small carbonization and chips, few microcracks, no melting and burning, and no need for further rinsing or polishing. It has effectively ensured the quality of processing, improves the workpiece yield while reducing costs and increasing efficiency, which is of great significance in promoting the transformation and upgrading of the domestic manufacturing industry and the development of high end manufacturing.
As important optical device, the prospect of 355nm UV laser’s wide application in the fields of biomedicine, material processing and optical communication cannot be ignored. In the field of biomedicine, it can be used in cell microscopy imaging and cancer treatment. It can achieve high precision processing of microfine structures in the field of material processing. And for optical communication, it can be used as an ideal light source for high speed and high capacity fibre optic transmission. In the future, with the progress of science and technology, the application prospect of 355nm UV laser will be broader, bringing new opportunities and challenges for the development of related fields.