Nature Communications (Dec 2019)

Observation of strong nonlinear interactions in parametric down-conversion of X-rays into ultraviolet radiation

  • S. Sofer,
  • O. Sefi,
  • E. Strizhevsky,
  • H. Aknin,
  • S. P. Collins,
  • G. Nisbet,
  • B. Detlefs,
  • Ch. J. Sahle,
  • S. Shwartz

DOI
https://doi.org/10.1038/s41467-019-13629-w
Journal volume & issue
Vol. 10, no. 1
pp. 1 – 8

Abstract

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Here, the authors report parametric down-conversion of X-rays into long wavelength radiation in gallium arsenide and lithium niobate crystals, with efficiencies about 4 orders of magnitude stronger than the efficiencies measured in any material studied previously. They explore the lack of inversion symmetry as a possible physical mechanism.