High-Transmission Planar X-Ray Waveguides

T. Salditt, S. P. Krüger, C. Fuhse, and C. Bähtz
Phys. Rev. Lett. 100, 184801 – Published 7 May 2008

Abstract

We have studied the propagation of hard x rays in a planar x-ray waveguide with a sub-20 nm guiding layer. To optimize the transmission and to minimize absorption losses, a novel waveguide design based on a two-component cladding was implemented. Optimized transmission is achieved by placing an appropriate interlayer between the cladding and the guiding core. The experimental results along with simulations of field propagation show that high transmission values can be obtained in waveguide optics at parameters relevant for x-ray imaging. These are small beam diameters below 20 nm and the relatively long guiding length necessary for efficient blocking of multi-keV photon energy beams.

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  • Received 4 January 2008

DOI:https://doi.org/10.1103/PhysRevLett.100.184801

©2008 American Physical Society

Authors & Affiliations

T. Salditt1, S. P. Krüger1, C. Fuhse1, and C. Bähtz2

  • 1Institut für Röntgenphysik, Universität Göttingen, Friedrich-Hund-Platz 1, 37077 Göttingen, Germany
  • 2ROBL Beam Line at ESRF, B.P. 220, 38043 Grenoble, France

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Issue

Vol. 100, Iss. 18 — 9 May 2008

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