What Is Subsurface Damage in Optical Components and How to Eliminate It?
Subsurface damage in optical components refers to hidden microcracks, residual stress, embedded abrasive particles, voids, and structural defects beneath the visible surface of an optic. It is often introduced during sawing, grinding, lapping, or polishing, and it can reduce optical performance even when the surface looks smooth. For precision optics, surface roughness alone is not […]