13 December 2001 Diffractive lenses for photon energies ranging from the extreme ultraviolet to hard x rays
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Abstract
Diffractive optics for the x-ray range have to meet the various requirements of experimental set-ups at synchrotron or other light sources. In the case of focusing elements it is essential that the devices are matched to parameters such as the photon energy and spatial coherence of the source, as well as the required spatial resolution, working distance, and diffraction efficiency. In some cases, a suppression of disturbing diffraction orders requires additional features such as an opaque central stop integrated into the lens. The Laboratory for Micro- and Nanotechnology provides the essential technologies necessary for the design and fabrication of diffractive x-ray lenses for a wide range of photon energies and applications. Over the past years, a large variety of optics tailored to the specific needs of x-ray optical experiments have been fabricated and tested. These include transmission Fresnel phase zone plate for microscopy, microprobe, or beam monitoring applications, as well as condensers to increase the flux in waveguiding experiments in the hard x-ray range. An overview of the nanofabrication technologies and a selection of experiments demonstrating the devices performance are presented.
© (2001) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Christian David, Bernd Noehammer, Harun H. Solak, Bianca Haas, Fredy Glaus, J. Friso van der Veen, Volker Schlott, Jeroen Bongaerts, Burkhard Kaulich, Jean Susini, "Diffractive lenses for photon energies ranging from the extreme ultraviolet to hard x rays", Proc. SPIE 4499, X-Ray Micro- and Nano-Focusing: Applications and Techniques II, (13 December 2001); doi: 10.1117/12.450225; https://doi.org/10.1117/12.450225
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