No, there is no damage to the surface being cleaned with laser. Laser cleaning is a non-contact, non-abrasive, and non-invasive cleaning method that does not cause damage to the substrate.
The laser beam is highly selective, interacting solely with impurities on the surface while leaving the substrate intact. Laser cleaning, in reality, is a safer and more ecologically friendly alternative to standard cleaning procedures because it does not use chemicals and produces no dust or waste.
Furthermore, laser cleaning may improve the surface quality of materials and eliminate even the most stubborn pollutants, making it an effective and efficient cleaning method.