Paper
2 September 2015 Structured surfaces on metal optics
Ralf Steinkopf, Johannes Hartung, Jan Kinast, Andreas Gebhardt, Stefan Risse, Ramona Eberhardt
Author Affiliations +
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.
© (2015) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Ralf Steinkopf, Johannes Hartung, Jan Kinast, Andreas Gebhardt, Stefan Risse, and Ramona Eberhardt "Structured surfaces on metal optics", Proc. SPIE 9574, Material Technologies and Applications to Optics, Structures, Components, and Sub-Systems II, 957407 (2 September 2015); https://doi.org/10.1117/12.2187998
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CITATIONS
Cited by 1 scholarly publication.
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KEYWORDS
Diamond machining

Diamond

Diffraction gratings

Optics manufacturing

Surface roughness

Extreme ultraviolet

Copper

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