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Title: Hard x-ray nanofocusing by refractive lenses of constant thickness

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 × 296 nm full width at half maximum.
Authors:
; ; ; ;  [1] ;  [1] ;  [2] ;  [3] ; ; ; ;  [4] ;  [5] ;  [1] ;  [2] ;  [2]
  1. Institute of Structural Physics, Technische Universität Dresden, D-01062 Dresden (Germany)
  2. (Germany)
  3. Faculty of Mathematics, Technische Universität Chemnitz, D-09107 Chemnitz (Germany)
  4. Institute of Semiconductors and Microsystems, Technische Universität Dresden, D-01062 Dresden (Germany)
  5. Deutsches Elektronen-Synchrotron DESY, D-22607 Hamburg (Germany)
Publication Date:
OSTI Identifier:
22350780
Resource Type:
Journal Article
Resource Relation:
Journal Name: Applied Physics Letters; Journal Volume: 105; Journal Issue: 13; Other Information: (c) 2014 Author(s); Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
75 CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY; APERTURES; BEAMS; BENDING; CRYSTALLINE LENS; DIAMONDS; HARD X RADIATION; KEV RANGE; MATERIALS; REFRACTION; SAPPHIRE; THICKNESS; VISIBLE RADIATION