title: Subsurface damage in precision ground ULE(R) and Zerodur(R) surfaces.
abstract: The total process cycle time for large ULE((R)) and Zerodur((R))optics can be improved using a precise and rapid grinding process, with low levels of surface waviness and subsurface damage. In this paper, the amounts of defects beneath ULE((R)) and Zerodur((R) )surfaces ground using a selected grinding mode were compared. The grinding response was characterised by measuring: surface roughness, surface profile and subsurface damage. The observed subsurface damage can be separated into two distinct depth zones, which are: 'process' and 'machine dynamics' related.
authors: X
authors: X
authors: Tonnellier
authors: P
authors: P
authors: Morantz
authors: P
authors: P
authors: Shore
authors: A
authors: A
authors: Baldwin
authors: R
authors: R
authors: Evans
authors: D D
authors: DD
authors: Walker