Tunable kinoform x-ray beam splitter

Publication Type:
Journal Article
Optics Letters, 2017, 42 (21), pp. 4327 - 4330
Issue Date:
Filename Description Size
1711.11083.pdfAccepted Manuscript Version1.17 MB
Adobe PDF
Full metadata record
© 2017 Optical Society of America. We demonstrate an x-ray beam splitter with high performances for multi-kilo-electron-volt photons. The device is based on diffraction on kinoform structures, which overcome the limitations of binary diffraction gratings. This beam splitter achieves a dynamical splitting ratio in the range 0–99.1% by tilting the optics and is tunable, here shown in a photon energy range of 7.2–19 keV. High diffraction efficiency of 62.6%, together with an extinction ratio of 0.6%, is demonstrated at 12.4 keV, with angular separation for the split beam of 0.5 mrad. This device can find applications in beam monitoring at synchrotrons, at x-ray free electron lasers for online diagnostics and beamline multiplexing and, possibly, as key elements for delay lines or ultrashort x-ray pulses manipulation.
Please use this identifier to cite or link to this item: