%0 Journal Article
%A Seiboth, Frank
%A Scholz, Maria
%A Patommel, Jens
%A Hoppe, Robert
%A Wittwer, Felix
%A Reinhardt, Juliane
%A Seidel, Jens
%A Knaut, Martin
%A Jahn, Andreas
%A Richter, Karola
%A Bartha, Johann W.
%A Falkenberg, Gerald
%A Schroer, Christian
%T Hard x-ray nanofocusing by refractive lenses of constant thickness
%J Applied physics letters
%V 105
%@ 1077-3118
%C Melville, NY
%I American Institute of Physics
%M PUBDB-2014-03817
%P 131110
%D 2014
%Z OA
%X In order to focus light or x rays, the thickness of a refractive lens is typically varied over its aperture. Here, we present a refractive x-ray lens made of lamellae of constant thickness, the refractive lamellar lens. Refractive power is created by a specific bending of the lamellae rather than by a concave lens profile. This very special design has the technological advantage that materials like sapphire or diamond can be used to make lenses by coating techniques. A first lens prototype focused x rays with a photon energy E = 15.25 keV to a lateral beam size of 164 nm x 296 nm full width at half maximum.
%F PUB:(DE-HGF)16
%9 Journal Article
%U <Go to ISI:>//WOS:000343031700010
%R 10.1063/1.4896914
%U https://bib-pubdb1.desy.de/record/172599