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Proceedings Paper

Magnetorheological finishing of IR materials
Author(s): Stephen D. Jacobs; Fuqian Yang; Edward M Fess; J. B. Feingold; Birgit E. Gillman; William I. Kordonski; Harold Edwards; Donald Golini
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Paper Abstract

Magnetorheological finishing (MRF) is a subaperture lap, deterministic process developed at the Center for Optics Manufacturing. MRF can remove subsurface damage from an optical component while correcting figure errors and smoothing small scale microroughness. The 'standard' magnetorheological fluid for finishing of optical glasses consists of magnetic carbonyl iron and nonmagnetic cerium oxide particles in water. This composition works well for a variety of soft and hard glass types, but it does not perform adequately for certain single crystal materials and polycrystalline compounds used in IR applications. In this paper, we describe modifications to MRF and finishing experiments for LiF, ZnSe, CaF2, AMTIR-1, ZnS, MgF2, sapphire, and CVD diamond.

Paper Details

Date Published: 1 November 1997
PDF: 12 pages
Proc. SPIE 3134, Optical Manufacturing and Testing II, (1 November 1997); doi: 10.1117/12.295132
Show Author Affiliations
Stephen D. Jacobs, Univ. of Rochester (United States)
Fuqian Yang, Univ. of Rochester (United States)
Edward M Fess, Univ. of Rochester (United States)
J. B. Feingold, Univ. of Rochester (United States)
Birgit E. Gillman, Univ. of Rochester (United States)
William I. Kordonski, QED Technologies, LLC (United States)
Harold Edwards, QED Technologies, LLC (United States)
Donald Golini, QED Technologies, LLC (United States)

Published in SPIE Proceedings Vol. 3134:
Optical Manufacturing and Testing II
H. Philip Stahl, Editor(s)

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