Mainz 2017 – wissenschaftliches Programm

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Q: Fachverband Quantenoptik und Photonik

Q 32: Quantum Information: Concepts and Methods V

Q 32.2: Vortrag

Mittwoch, 8. März 2017, 14:45–15:00, P 2

Quantum Imaging with Incoherent Light From a Free-Electron Laser — •Raimund Schneider for the Quantum Imaging Collaboration — Universität Erlangen-Nürnberg, Staudtstr. 1, 91058 Erlangen — Deutsches Elektronen-Synchrotron DESY, Notkestr. 85, 22607 Hamburg — Universität Hamburg, Luruper Chaussee 149, 22761 Hamburg

We report on a new method to reconstruct an unknown geometry of independent thermal sources radiating at VUV wavelengths. Our imaging algorithm is based on measuring higher order spatial intensity correlations allowing to extract structural information about the source distribution from the light field even though the sources emit completely incoherently. We present experimental results of imaging an artificial molecule where the atoms are mimicked by holes in a SiN membrane. The hole mask is illuminated by incoherent light scattered from a diffusor which itself is illuminated by the beam of the free electron laser FLASH at DESY, Hamburg. This imaging method is of particular interest in the x-ray regime as the coherence of high energy photons is easily lost, e.g., due to imperfect beam optics or incoherent scattering processes.