Ultraviolet Lasers

UV Lasers ( Ultraviolet Lasers )

The technology of lasers for the generation of ultraviolet light involves a number of challenges:

Ultraviolet Lasers have been used in advanced research,development and industrial manufacturing. UV lasers are also used in biotechnology and medical markets that require sterilization and disinfectant devices. Those devices require light sources from within the wavelength of Ultraviolet. Lasers in the UV range have very destructive capabilities. Lasers that are developed using ultraviolet under DPSS circuitry contain crystals from Nd:YAG/Nd:YVO4 garnet.Ultraviolet Lasers are excellent choices in micro-machining applications. Ultraviolet Lasers are often used in the manufacturing of printed circuit boards and consumer electronics. 

For short wavelengths, strong spontaneous emission leads to a high threshold pump power (except when the gain bandwidth is narrow).
For wavelengths below ≈200 nm, the choice of transparent and UV-resistant optical materials is fairly limited (see the article on ultraviolet light).
Even weak surface roughness or bubble content of optical components can lead to strong wavefront distortions and scattering losses

There are various kinds of lasers which can directly generate ultraviolet light.

There are laser diodes, normally based on gallium nitride (GaN).
Some solid-state bulk lasers.
Few fiber lasers can generate ultraviolet light 
Although most dye lasers emit visible light
Excimer lasers are very powerful UV sources
Argon ion lasers can continuously emit at wavelengths of 334 and 351 nm

UV Lasers are highly suitable for scientific and industrial uses that require micro-precision machining. Ultraviolet lasers are also used in cosmetic dentistry mainly to facilitate chemical bonding and bleaching of organic enamels and other procedures. Performing experiments in atomic and molecular spectroscopy and chemical dynamics are just a few examples of what UV lasers are capable of. Ultraviolet lasers emit shorter wavelengths than blue lasers which is capable of producing a data capacity 20 times as dense as the current Blu-ray lasers. Japanese computer hardware manufacturers are hard at work putting Ultraviolet Lasers and ultraviolet diode emitters into computer data storage disk technology, drastically increasing data storage capabilities. 

Ultraviolet laser technology will spawn a new generation of applications in nanotechnology, material sciences, biology, chemistry, plasma physics. Lasers are becoming the building blocks of various industries and even humanity with lasers controlling just about every aspect of our lives. From Ultraviolet Lasers to red laser pointers and beyond, photonics will always be a fundamental achievement of mankind as Ultraviolet lasers are becoming as common as the rising sun.