Erlangen 2018 – scientific programme

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A: Fachverband Atomphysik

A 27: XUV/X-ray Science

A 27.3: Talk

Wednesday, March 7, 2018, 14:30–14:45, K 1.011

Measuring sub-Ångström translations by time-domain interferometry — •Stephan Goerttler¹, Andreas Kaldun¹, Christian Ott¹, Kilian Heeg¹, Patrick Reiser¹, Cornelius Strohm², Johann Haber², Rajagopalan Subramanian¹, Rudolf Rüffer³, Ralf Röhlsberger², Jörg Evers¹, and Thomas Pfeifer¹ — ¹Max-Planck-Institut für Kernphysik, 69117 Heidelberg, Germany — ²Deutsches Elektronen-Synchrotron DESY, 22607 Hamburg, Germany — ³ESRF-European Synchrotron, CS40220, 38043 Grenoble Cedex 9, France

The temporal phase of a coherently emitted pulse is inextricably linked to the translation of the emitter in space. We use interferometry in the time domain and a direct analytical phase-reconstruction algorithm to retrieve the temporal phase imprinted onto the 14.4-keV emission line of ⁵⁷Fe. As the wavelength of this transition is very small (λ=0.82Å) we can determine the motion of the emitter on sub-Ångström length and nanosecond time scale.