Over the past few decades. The laser marking industry has achieved remarkable development. At present, there are a large number of laser pointer marking system suppliers serving various industries around the world. The most important change in this market is the introduction of low-power pulsed fiber lasers, which has now grown to the point that almost every supplier can provide this type of fiber laser marking equipment within its product supply range. These lasers typically have a wavelength in the near-infrared (NIR) category around 1070 nm. Ideal for marking most metal products. Because compared with the longer wavelength CO2 laser. This wavelength has lower reflectivity.
But even in this wavelength range. The difficulty of marking different metals varies. Aluminum, copper and its alloys are widely used in almost every industry. These materials can be laser-marked, but it can still be difficult to make dark marks clearly visible to the naked eye on low-temperature conditions. In addition, a proven technology has shown that highly transmissive materials can typically be processed with marking and surface texturing with minimal damage within pulse widths that are not associated with unexpected non-linear characteristics.
In the broad field of industrial green laser pointer material processing, the term laser surface processing is often used to describe a series of processing activities using a continuous wave (CW) near-infrared laser source with a power of several kilowatts. However, the above process is completely different from the techniques described herein that can be considered as micro and nano-scale surface applications. Many processes using short pulse picosecond (10-12) and femtosecond (10-15) ultrafast lasers have been identified. There are also many related publications.
By incorporating high-power blue laser transmitters into sci-fi movie toys, it seems that more and more people are enjoying it by breaking balloons and burning tissues. This is the toy of the ray gun "Phaser" that appeared in "Star Trek", and its circuit uses a blue laser pointer that writes once to the Blu-ray drive. The intensity of the laser light is the intensity of the light emitted as it is, that is, thermal energy.