In fact, the high-energy proton beam in the material transmission has a unique Bragg peak, simply is the proton in the transmission process of loss of energy is generally very small, after a transmission distance, the proton beam most of the energy deposited mainly at the end. Therefore, this property is useful in the treatment of cancer in the body, the effective use of high energy at the end to kill cancer cells while well protecting healthy cells. In fact, based on the traditional accelerator proton knife tumor treatment at home and abroad have made great progress. Because the cost is very difficult to spread. This time, the circular polarization of the ultra-short laser pointer drive to accelerate the formation of high-quality proton beam, because of its acceleration gradient (unit length of particles obtained energy) is much larger than the traditional accelerator, greatly reducing the scale of the accelerator, which is expected to reduce the cost of treatment, become The new generation of treatment for cancer proton scalpels, the results of this study also represents a laser-driven proton knife program has taken a key step forward.

On the current laser marking process, can only use part of the fiber laser in the stainless steel above the color mark. The main factors of fiber laser marking machine are divided into internal factors and processing of two factors. Internal factors mainly for the laser frequency, laser beam mode and beam divergence angle, laser power, reasonable optical shaping with the processing of auxiliary gas substances. Internal factors mainly in the early models when the allocation of attention, should follow the advice of laser engineers to buy. Another factor mainly requires customers to pay attention to the processing, mainly for the marking density, marking the format, marking the depth and laser spot size.

The output wavelength of the laser covers a shorter band, and the short wavelength blue laser pointer has been widely used. Many advanced manufacturing processes require cold processing, such as in the manufacture of smart phones, often need to use short wavelength, short pulse UV laser to deal with. Short wavelength lasers have been widely used in surface marking, semiconductor wafer processing, drilling, cutting and other fields. The pulse speed of the laser is getting faster and faster, and the ultrafast laser has been developed rapidly. It has been driven into industrial applications by means of simpler structure, more convenient operation, lower cost and more stable performance.

When the sapphire as the substrate material, is widely used in LED chip production, the traditional cutting tool has been unable to meet the cutting requirements, manufacturers have been using 355nm and 266nm short wavelength nanosecond laser scribing, processing of sapphire wafer, the way to solve the difficulty of sapphire cutting and LED industry requirements for small and narrow cutting chip for, on sapphire substrate LED scale production, and may provide a guarantee of high quality cutting. With the development of blue green LED chip technology and the expansion of scale, the demand for laser cutting equipment is higher and higher, which has forced the laser equipment supplier to upgrade the equipment.

The late 80s of last century, Europe, Japan, Israel and other countries and regions have carried out laser shock enhancement technology research. But from the public reports of information, so far, the international community only the United States will strengthen the practical impact of laser shock.

For a considerable period of time, green laser pointer shock enhancement technology has been monopolized by Western countries, and China's aircraft carrier manufacturing industry has been struggling in the field of mechanical strengthening, compared with the traditional way of strengthening, laser shock enhanced products with low roughness, High wear strength, dislocation structure stability and a series of advantages, can be widely used in aeroengine turbine fan blades, high pressure compressor whole blade and other important parts of the surface treatment, is also widely used in other key parts of the aircraft maintenance and so on. This is also one of the important purposes why China decided to turn over the car.