Laser pointer polishing of copper metal for contrast is a relatively well-known method. but. Because of the inherent high reflectivity of this metal. Obtaining dark marks is usually more difficult. IPG Photonics' Silicon Valley Technology Center (SVTC) has developed this type of technology to produce a dark surface with an L * value of <30 on the surface of copper materials. By comparing with the surface roughness before polishing, we can see the difference in roughness of the laser-treated surface (<1μmRa). But the surface structure is more complicated. The surface area has been greatly improved. This results in a highly absorbent surface. This can be seen from Figure 4.
The far right part is the polished area without green laser pointer treatment. On the left is the laser-treated area. These features are compared to the features formed on the aluminum material. To be an order of magnitude smaller. The obtained surface structure supports the assumption of a non-linear, plasma-controlled process, rather than the traditional heat removal process. Further evidence is that the same laser parameters can be used to process 20 μm thick copper foil. Without deforming the material. Although a sub-nanosecond laser with an average power of 28.5 W is used.
The 650 nm red laser pen is not as obvious as the green laser, and is enough for formal demonstrations in schools, star research and astronomy. Report low power red laser without wearing laser protective glasses. In addition, no matter what type of laser pen you point to, do not try to look at moving vehicles, aircraft or aircraft. There will be a huge sharp laser beam, temporarily dazzling. Whenever people point to the pen laser device, do not fall into the wrong hands or abuse it. Finally, you need to confirm your budget. We are the world's leading laser manufacturer and will choose the most economical products for you according to the current situation. No matter what the price is, you will get more than you expect.