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Diffractive optics for laboratory sources to free electron lasers
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- Vogt, Ulrich (author)
- KTH,Biomedicinsk fysik och röntgenfysik
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- Reinspach, Julia (author)
- KTH,Biomedicinsk fysik och röntgenfysik
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- Uhlén, Fredrik (author)
- KTH,Biomedicinsk fysik och röntgenfysik
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- (creator_code:org_t)
- 2013-10-25
- 2013
- English.
- In: 11th International Conference On X-Ray Microscopy (XRM2012). - : Institute of Physics (IOP). ; , s. 012001-
- Conference paper (peer-reviewed)
Abstract
Subject headings
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- In this contribution we present our recent results in the field of diffractive optics for both soft and hard x-ray radiation, and for laboratory sources to x-ray free electron lasers (XFEL). We developed a laboratory soft x-ray microscope that uses in-house produced zone plate optics as high-resolution objectives. We continuously try to improve these optics, both in terms of efficiency and resolution. Our latest development is the manufacturing of tungsten soft x-ray zone plates with outermost zone widths of 12 nm and 90 nm high structures. For hard x-rays, we investigated the possibility to use metal zone plates on a diamond substrate for nano-focusing of the European X-ray Free Electron Laser. The simulations show that the heat conduction is efficient enough to keep a zone plate well below melting temperature. However, metal zone plates will experience large and rapid temperature fluctuations of several hundred Kelvin that might prove fatal. To test this, we manufactured tungsten on diamond prototype zone plates and exposed them to radiation from the LCLS XFEL. Results show that metal zone plates can survive the XFEL beam.
Subject headings
- NATURVETENSKAP -- Fysik -- Atom- och molekylfysik och optik (hsv//swe)
- NATURAL SCIENCES -- Physical Sciences -- Atom and Molecular Physics and Optics (hsv//eng)
Keyword
- Zone Plates
- Fabrication
- Physics
- Fysik
Publication and Content Type
- ref (subject category)
- kon (subject category)
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- Vogt, Ulrich
- Reinspach, Julia
- Uhlén, Fredrik
- Nilsson, Daniel
- Hertz, Hans M.
- Holmberg, Anders
- About the subject
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- NATURAL SCIENCES
- NATURAL SCIENCES
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- Karlstad University
- Royal Institute of Technology
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