“X-Ray Optics on a Chip: Guiding X Rays in Curved Channels” by Markus Osterhoff

Salditt2015

• X-Ray Optics on a Chip: Guiding X Rays in Curved Channels
• T. Salditt S. Hoffmann M. Vassholz J. Haber M. Osterhoff J. Hilhorst
• doi:10.1103/PhysRevLett.115.203902
• Physical Review Letters, 115, 203902

• We study the propagation of hard x rays in single curved x-ray waveguide channels and observe waveguide effects down to surprisingly small radii of curvature R≃10  mm and a large contour length s≃5  mm, deflecting beams up to 30°. At these high angles, about 2 orders of magnitude above the critical angle of total reflection θc, most radiation modes are lost by “leaking” into the cladding, while certain “survivor” modes persist. This may open up a new form of integrated x-ray optics “on a chip,” requiring curvatures mostly well below the extreme values studied here, e.g., to split and to delay x-ray pulses.

• x-ray waveguides
•