omnipotent! 355nm UV nanosecond laser marking application

The highly focused laser spot quickly sweeps across the surface of the object, and the clear graphic and text marks appear immediately. Such a scene is impressive and gives a feeling of future black technology. In fact, this is one of the most common applications of lasers - laser marking mark.

Lasers are one of the great inventions of mankind since the 20th century after nuclear energy, computers and semiconductors. The working principle of laser marking is to use a high-energy-density laser to locally irradiate the workpiece, so that the surface material vaporizes or undergoes a photochemical reaction of color change, thereby leaving a permanent mark. Laser marking has high marking efficiency, high processing accuracy, low comprehensive cost, and fully takes into account the aesthetics and personalized customization needs of marking. It is widely used in the market to improve efficiency or give products new value, such as the common ones around you. There are traces of laser marking on metal and non-metallic items such as the back cover of mobile phones, Bluetooth headset boxes, U disks, chargers, keyboards, switch panels, etc., and when you touch these marks, you don't even feel the bumps at all. Sense, full of sense of technology.

uv laser | green laser | Ultraviolet lasers | uv dpss laser | nanosecond laser | UV laser source | Solid State Lasers

RFH 355nm UV nanosecond solid-state laser has the advantages of short wavelength, small spot, narrow pulse width, excellent beam quality, high precision and high peak power, so it has a lot of advantages in laser marking.

This is because: most materials have a generally high absorption rate for 355nm ultraviolet light, and its single photon energy is high, and it can even directly break the molecular bonds of some materials to make them detached from the surface of the material. This way of working is low in heat. , so UV laser marking can also be called "cold processing". In addition, the ultraviolet light focusing spot is extremely small, which can greatly reduce the mechanical deformation of the material and the processing heat effect is small. The integration of these advantages is very sensitive to thermal effects. It is of great significance when the material is finely microfabricated.

To obtain stable and fine marking effects, a stable and reliable laser is required. This 355nm UV laser adopts advanced resonator design and high-precision electric control platform to ensure power stability. It obtains excellent beam quality (M2<1.2) and short pulse width (<25ns@) through a transmissive spatial filter module. 30KHz), easy to operate and save cost.

The actual marking application shows that the thinnest line width of the ultra-fine beam of the 355nm ultraviolet nanosecond solid-state laser on the surface of the material can reach 0.1 mm, which provides natural conditions for fine marking, not only can mark complex text, graphics, trademark logos , QR code, production batch number, etc., with delicate lines and smooth edges, which can improve the appearance and market competitiveness of products, and enhance the comprehensive strength of the brand.