Tailoring interference and nonlinear manipulation of femtosecond x-rays

Marc Herzog, Daniel Schick, Wolfram Leitenberger, Roman Shayduk, Renske M. Van Der Veen, Christopher J. Milne, Steven L. Johnson, Ionela Vrejoiu, Matias Bargheer

Research output: Contribution to journalArticlepeer-review


We present ultrafast x-ray diffraction (UXRD) experiments on different photoexcited oxide superlattices. All data are successfully simulated by dynamical x-ray diffraction calculations based on a microscopic model, that accounts for the linear response of phonons to the excitation laser pulse. Some Bragg reflections display a highly nonlinear strain dependence. The origin of linear and two distinct nonlinear response phenomena is discussed in a conceptually simpler model using the interference of envelope functions that describe the diffraction efficiency of the average constituent nanolayers. The combination of both models facilitates rapid and accurate simulations of UXRD experiments.

Original languageEnglish (US)
Article number013004
JournalNew Journal of Physics
StatePublished - Jan 2012
Externally publishedYes

ASJC Scopus subject areas

  • General Physics and Astronomy


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