J. Phys. IV France
Volume 104, March 2003
Page(s) 211 - 216

J. Phys. IV France
104 (2003) 211
DOI: 10.1051/jp4:200300063

1D and 2D X-ray waveguides: Optics and applications

F. Pfeiffer1, C. David2 and T. Salditt1

1  Experimentalphysik, Universität Saarbrücken, 66041 Saarbrücken, Germany
2  Paul Scherrer Institut, 5232 Villigen, Switzerland

X-ray waveguides [1-4] offer a novel approach for nanobeam production, which may become useful in coherent beam imaging and phase contrast projection microscopy [5]. Internal field enhancement, coherency properties, and coupling efficiency of these devices have been measured and compared to theoretic predictions. The fundamentals of x-ray wave guide optics can be derived from a scalar wave equation. Up to now, x-ray waveguide optics have exclusively been one-dimensional (1D), while many applications demand two-dimensionally (2D) confined point beams. We have recently demonstrated the first proof of principle that x-ray waveguide effects can be generalized to 2D devices using e-beam defined lithographic nanostructures [6], delivering of a coherent hard x-ray beam with nanometer sized cross-section (69 nm $\times$ 33 nm).

© EDP Sciences 2003