APPLIED PHYSICS

Computer estimation procedure for quality of the polished surfaces of polycrystalline zinc chalcogenides

E. M. Gavrishchuk, E. Yu. Vilkova, A. N. Kolesnikov, O. V. Timofeev
Institute of chemistry of high-purity substances RAS, Nizhniy Novgorod, Russia

   A procedure for the quantitative assessment of the optical finish of the polished surface of zinc selenide is developed. The procedure is based on computer recognition of defects on microphotography of surface which makes it possible to build their distribution functions according to the sizes and to determine the quality of polishing according to GOST 11141—84.

PACS: 85.60.-g

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