Abstract
Optical shops are increasingly called upon to characterize not only the optical figure and macrodefects (scratch/dig) of their work but the microroughness as well. Whether the optical surface is for imaging or non-imaging applications (e.g., calendering rolls), performance depends upon meeting the specified surface microroughness. The challenge of measuring roughness of 100Å RMS co less than 10Å RMS has been met by a myriad of surface interogation techniques employing most known surface interaction phenomena, including light scattering.
© 1985 Optical Society of America
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