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Magnetorheological finishing for removing surface and subsurface defects of fused silica optics Magnetorheological finishing for removing surface and subsurface defects of fused silica optics

Abstract : We investigate the capacity of magnetorheological finishing (MRF) process to remove surface and subsurface defects of fused silica optics. Polished samples with engineered surface and subsurface defects were manufactured and characterized. Uniform material removals were performed with a QED Q22-XE machine using different MRF process parameters in order to remove these defects. We provide evidence that whatever the MRF process parameters are, MRF is able to remove surface and subsurface defects. Moreover, we show that MRF induces a pollution of the glass interface similar to conventional polishing processes.
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Jérôme Neauport, Rodolphe Catrin, Daniel Taroux, Philippe Cormont, Cédric Maunier, et al.. Magnetorheological finishing for removing surface and subsurface defects of fused silica optics Magnetorheological finishing for removing surface and subsurface defects of fused silica optics. Optical Engineering, SPIE, 2014, 53, pp.092010. ⟨10.1117/1.OE.53.9.092010]⟩. ⟨cea-01692792⟩

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