Decorative patterns or shapes can be engraved onto almost any material. Also all types of markings or barcodes can be written at high speed with high accuracy.
Laser micro-engraving and micro-marking is really a sub-set of laser micro-milling. Small amounts of material are removed by each laser pulse. The laser beam is scanned over the surface to produce the desired pattern. By altering the number of pulses at each point the depth of mark can be controlled.
Visit the Oxford Lasers Ltd website for more information on Laser Marking Micro Engraving