Han’s laser is the leader in the field of laser and intelligent manufacturing. As an innovative enterprise, it has more than 3500 domestic and foreign invention patents through independent innovation, and produces excellent laser technology equipment; As a major supplier of basic industrial equipment and automation, it can provide start-up companies with high-tech equipment.
The ultra-fast laser independently developed by Han’s has made breakthroughs in technology and created better basic conditions for the manufacturing, communication electronics and other industries, bringing more development space.
What is an ultrafast laser? In fact, femtosecond lasers, picosecond lasers, and attosecond lasers are collectively referred to as ultrafast lasers, and can also be called short-pulse lasers. Let’s take a look at the Draco series of ultrafast lasers as an example.
Draco Series Ultrafast Laser
On the one hand, for high thermal conductivity materials such as metals, ultrafast lasers can effectively suppress thermal diffusion, thereby reducing heat affected zones.
Laser with a pulse width of 200 femtoseconds Laser with a pulse width of 3.3 nanoseconds
Scanning electron microscope (SEM) images of holes drilled in 100 micron thick steel foil. The holes produced by femtosecond laser ablation have sharp edges, steep walls, and almost no signs of thermal effects. In contrast, nanosecond laser ablation creates large areas of melting around the ablation holes.
On the other hand, for picosecond/femtosecond laser pulses, the pulse relaxation time is less than the electron and lattice interaction time, and the material can be sublimated directly to avoid re-casting, thus obtaining a small heat-affected zone.
From left to right, continuous, nanosecond, picosecond/femtosecond laser pulses
The black area represents the heat affected zone and the blue line represents the shock wave generated by the laser.
Draco series ultra-fast lasers can be used in a wide range of applications, not only cutting, drilling, and two-dimensional fine marking on glass, ceramics, etc.,; but also cutting and drilling in plastics, oxides and organic materials and removing surface coating, which is suitable for all industries.