Copper Absorption at Different Laser Wavelengths: Data and Engineering Implications
Copper is widely used in EV batteries1, electronics, and power systems. However, laser processing copper is challenging because the material reflects most incoming laser energy. Copper absorption changes significantly with laser wavelength2. Infrared lasers are poorly absorbed, while shorter wavelengths such as green and blue lasers 3 couple much more efficiently with copper. Understanding how […]
