The Diamond-NOM: A non-contact profiler capable of characterizing optical figure error with sub-nanometre repeatability

Autor: F. Senf, Frank Siewert, Heiner Lammert, U. Pedersen, Thomas Zeschke, Simon G. Alcock, Stewart Scott, T. Noll, Rob Walton, Kawal Sawhney
Rok vydání: 2010
Předmět:
Zdroj: Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment. 616:224-228
ISSN: 0168-9002
DOI: 10.1016/j.nima.2009.10.137
Popis: We present design and implementation details of the Diamond-NOM (nanometre optical metrology)—a non-contact profiler capable of measuring the surface topography of large (up to 1500 mm long) and heavy (up to 150 kg) optical assemblies with sub-nanometre resolution and repeatability. These levels of performance are essential to fabricate and optimize next generation optics. The capabilities of the Diamond-NOM have already enabled collaborations with optic manufacturers, including production of a preferentially deposited, large (1.2 m), synchrotron mirror with a slope error of ∼0.44 μrad rms and using bimorph technology to reduce figure error of a super-polished (elastic emission machining) optic to
Databáze: OpenAIRE