Laser marking is a non-contact process that uses a focused beam of light to create a long lasting or permanent mark on a surface. Laser marking works by transferring heat energy to the target material to generate visible markings on or just under the surface via controlled burning or ablation. Lasers can mark a wide variety of materials including metals and non-metals like polymers, ceramics, and glass.

The high-precision and small spot size of focused laser beams enables the creation of complex and high-resolution marks which are often used for labeling, product tracking, machine vision, and regulatory compliance. The speed and reliability of laser marking has led to widespread adoption for marking applications across industries such as automotive, electronics, aerospace, semiconductor, and medical devices.