Author Affiliations
Abstract
1 National Synchrotron Radiation Laboratory, University of Science and Technology of China, Hefei 230029, China
2 Institut für Angewandte Physik, Friedrich-Schiller-Universität Jena, Max-Wien-Platz 1, Jena 07743, Germany
3 Technische Universität Braunschweig, Laboratory for Emerging Nanometrology, Pockelsstr. 14, Braunschweig 38106, Germany
4 Physikalisch-Technische Bundesanstalt, Bundesallee 100, Braunschweig 38116, Germany
Near-field holography (NFH), with its virtues of precise critical dimensions and high throughput, has a great potential for the realization of soft x-ray diffraction gratings. We show that NFH with reflections reduced by the integration of antireflective coatings (ARCs) simplifies the NFH process relative to that of setups using refractive index liquids. Based on the proposed NFH with ARCs, gold-coated laminar gratings were fabricated using NFH and subsequent ion beam etching. The efficiency angular spectrum shows that the stray light of the gratings is reduced one level of magnitude by the suppression of interface reflections during NFH.
050.1950 Diffraction gratings 120.4610 Optical fabrication 220.4000 Microstructure fabrication 340.7480 X-rays, soft x-rays, extreme ultraviolet (EUV) 
Chinese Optics Letters
2016, 14(9): 090501

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