In the past ten years, interest in short-wave continuous ultraviolet (UV) light sources has continued to grow. The UV laser pointer with a wavelength range of 200-280 nm and continuous output has the advantages of short wavelength, large photon energy, small diffraction effect, strong resolving power, and small thermal effect.
Short-wave UV lasers are very suitable for the integrated development of scientific research, industry, and OEM systems. They can be used for fluorescence absorption, Raman spectroscopy, genetic testing, coherent measurement, biochemical, medical diagnosis and treatment, food safety, rapid prototyping, precision microprocessing, 3D printing and other applications Provide an ideal light source.
The data storage space of disks based on short-wave ultraviolet lasers is 20 times higher than that of blue lasers. Therefore, Japanese computer hardware manufacturers are working hard to apply short-wave ultraviolet lasers and short-wave ultraviolet laser tubes to computer data storage technology in order to substantially increase data storage capacity.
The reason why short-wave ultraviolet lasers are superior to infrared green laser pointer and visible lasers is that short-wave ultraviolet lasers can directly destroy the chemical bond processing materials that connect the atomic components of the substance without destroying the surrounding environment. Generally, CW short-wave ultraviolet lasers are applied using traditional gas laser technology or mode-locked solid-state laser technology, but they can only provide quasi-continuous performance. The peak power generated by these mode-locked lasers is usually in the kilowatt level, which severely limits the application of short-wave ultraviolet lasers in the biological field.
The all-solid-state solid-state laser technology pumped by laser diodes in the past ten years has not only increased the power, optimized the mode quality, but also made the direction stability better. Compared with other types of lasers, it has the characteristics of high efficiency, reliable performance, better beam quality and stable power.