Correlation of polishing-induced shallow subsurface damages with laser-induced gray haze damages in fused silica optics
He Xiang, Zhao Heng, Wang Gang, Zhou Peifan, Ma Ping
       

Classic initial laser induced damage morphologies of samples (a) A, (b) B, (c) C at a laser fluence of 18 J/cm2 and (d) D at a fluence of 22 J/cm2. Note that sample D has the higher damage threshold (for catastrophic damages) than other samples.