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Proceedings Paper

Structured surfaces on metal optics
Author(s): Ralf Steinkopf; Johannes Hartung; Jan Kinast; Andreas Gebhardt; Stefan Risse; Ramona Eberhardt
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Paper Abstract

Diamond machining of metal optics is a flexible way to manufacture structured elements on different surface geometries. Especially curved substrates such as spheres, aspheres, or freeforms in combination with structured elements enable innovative products like headlights of automobiles or spectrometers in life science or space applications. Using diamond turning, servo turning, milling, and shaping, different technologies for arbitrary geometries are available. The addressed wavelengths are typically in the near- infrared (NIR) and infrared (IR) spectral range. Applying additional finishing processes, diamond machining is also used for optics applicable down to the EUV spectral range. This wide range of applications is represented in the used materials, too. However, one important material group for diamond machining is metal substrates. For diamond machining of structured surfaces, it is important to consider the microstructure of the utilized materials thoroughly. Especially amorphous materials as nickel-phosphorus alloys or fine-grained copper allow the fine structuring of refractive and diffractive structures. The paper analyzes the influence variables for diamond machining of structured surfaces and shows the use of this research for applications in the spectral range from IR to EUV.

Paper Details

Date Published: 2 September 2015
PDF: 8 pages
Proc. SPIE 9574, Material Technologies and Applications to Optics, Structures, Components, and Sub-Systems II, 957407 (2 September 2015); doi: 10.1117/12.2187998
Show Author Affiliations
Ralf Steinkopf, Fraunhofer-Institut für Angewandte Optik und Feinmechanik (Germany)
Johannes Hartung, Fraunhofer-Institut für Angewandte Optik und Feinmechanik (Germany)
Jan Kinast, Fraunhofer-Institut für Angewandte Optik und Feinmechanik (Germany)
Friedrich Schiller Univ. Jena (Germany)
Andreas Gebhardt, Fraunhofer-Institut für Angewandte Optik und Feinmechanik (Germany)
Stefan Risse, Fraunhofer-Institut für Angewandte Optik und Feinmechanik (Germany)
Ramona Eberhardt, Fraunhofer-Institut für Angewandte Optik und Feinmechanik (Germany)


Published in SPIE Proceedings Vol. 9574:
Material Technologies and Applications to Optics, Structures, Components, and Sub-Systems II
Matthias Krödel; Joseph L. Robichaud; William A. Goodman, Editor(s)

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