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Updated: Jun 7, 2026

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Convergent Polishing: A Simple, Rapid, Full Aperture Polishing Process of High Quality Optical Flats & Spheres
Published on: December 1, 2014
The precision polishing of bismuth silicate and bismuth germanate
Applied Optics
|October 22, 2010
Abstract:
A recipe is given for the polishing of precise surfaces oncrystals of bismuth silicate (BSO) and bismuth germanate(BGO). Using this recipe, crystals having surface figure betterthan 1/10 wave, roughness of 20-50 Å rms, and laserquality parallelism (10 arcsec or better) were obtained withabout 1-2 hours effort.

