Polishing Large NaCl Windows On A Continuous Polisher

Ray Williamson

doi:10.1117/12.957735

13 November 1980 Polishing Large NaCl Windows On A Continuous Polisher

Ray Williamson

Proceedings Volume 0190, Los Alamos Conference on Optics 1979; (1980) https://doi.org/10.1117/12.957735
Event: Los Alamos Conference on Optics '79, 1979, Los Alamos, United States

Abstract

The Helios and Antares CO2 fusion laser systems incorporate numerous large sodium chloride windows. These must be refinished periodically, making necessary a consistent and predictable polishing capability. A continuous polisher (or annular lap) which might fulfill this requirement was purchased and a process development program was undertaken at Kirtland's Developmental Optical Facility. Large NaC1 windows had not been polished on this type of machine. The machine has proven itself capable of producing λ/16 figures at 633 nm (HeNe) with extremely smooth surfaces on glass. Since then, we have been working exclusively on NaCl optics. Due to different polishing parameters between NaC1 and glass, and the slight solubility of the pitch in the slurry, this phase presents new problems. The work on glass will be reviewed. Results on NaCl to date will be reported. The potential of this type of machine relative to prisms, thin and irregularly shaped optics will be discussed.

Citation Download Citation

Ray Williamson "Polishing Large NaCl Windows On A Continuous Polisher", Proc. SPIE 0190, Los Alamos Conference on Optics 1979, (13 November 1980); https://doi.org/10.1117/12.957735

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