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Optical Diffraction Methods for Analysis and Control of Pit Geometry on Optical Disks

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In the optical disk mastering process information is recorded on the master disk surface in the form of a sequence of pits. For analysis and control of the disk manufacturing process, the dimension of such pits are assessed with optical diffraction measurements. The results of such measurements can be interpreted in a relatively simple way by using scalar diffraction theory.

JAES Volume 41 Issue 1/2 pp. 19-31; February 1993
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AES - Audio Engineering Society