Abstract

Surface roughness of magnetic recording media has been experimentally and theroetically related to the performance of the media (ref. ¹). A computerized three-dimensional interferometer (ref. ²) has become an invaluable aid in the development of current and next generation recording products. Correlations of −0.95 and better are routinely achieved between the measured RMS roughness and magnetic performance measures such as rf output in dB.

© 1985 Optical Society of America