Femtosecond Laser Applications in Three Significant Fields

Since its invention, the laser has been widely used in different fields such as processing and manufacturing, testing, and medical treatment of its monochromaticity, good directionality, and concentration of energy, among many other advantages. In recent years, scientists have researched and discovered a more peculiar laser - femtosecond laser. It is reported that the femtosecond laser is the shortest pulse technology, which means that human beings can obtain it in laboratory conditions. Femtosecond laser, in a split second, issued the power than the world's total power of electricity generation; scientists predicted that the femtosecond laser would play an essential role in the field of new energy in the next century.

Ultra-fast and ultra-strong laser mainly takes femtosecond laser as the core of research and application. As a unique scientific research tool and means, the application of femtosecond laser can be summarized into three significant aspects, namely, the application of femtosecond laser in the field of ultra-fast, the application of ultra-strong and the application of ultra-fine precision machining.

Ultrafast phenomena refer to physical, chemical, or biological processes that occur in the microscopic system of matter with rapid changes. Femtosecond laser in ultrafast phenomenon research plays a rapid process diagnosis. The femtosecond laser is like a beautiful clock and an ultra-high-speed "camera," which can analyze and record some of the fast processes in nature, especially at the atomic and molecular levels. In this field, the femtosecond laser opens a new door, allowing us to glimpse the more subtle natural world.

The application of femtosecond lasers in ultra-intensity (also known as strong-field physics) is attributed to the fact that the peak power and intensity of femtosecond pulses with specific energy can be very high. The electromagnetic field corresponding to such intense light can be much larger than the Coulomb field in an atom, thus quickly stripping the fraction of all its electrons. Therefore, femtosecond lasers are essential for studying high-order nonlinear multiphoton processes in atomic and molecular systems. Energy densities corresponding to femtosecond lasers are only possible in nuclear explosions. Femtosecond intense light can generate coherent X-rays and other very short wavelengths of light, which can be used to study controlled nuclear fusion.

With the increasing size of integrated circuits, electronic components are becoming smaller and smaller in size, and the demand for this provides room for ultrafine processing technology. Femtosecond laser for ultrafine processing is a femtosecond laser for ultrafast phenomenon research and ultra-intense phenomenon research, in addition to another important application of the femtosecond laser technology research field. This application has been gradually developed in recent years in response to market demand, and significant progress has been made.

The femtosecond ultrafast and femtosecond ultra-intense research differs from the femtosecond laser ultrafine processing, and advanced manufacturing technology is closely related to developing specific critical industrial production technology that can play a more direct role in promoting. Femtosecond laser ultrafine processing is today's world of lasers optoelectronics industry, an incredibly compelling cutting-edge research direction. With the continuous development of femtosecond laser technology and the constant expansion of the field of application, femtosecond laser will undoubtedly have more applications.