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European XFEL Science Seminar

"When X-rays go Quantum: New Perspectives for Spectroscopy and Imaging"

by Ralf Röhlsberger (DESY)

E1.173 (Campus Schenefeld, XHQ)


Campus Schenefeld, XHQ

In recent years we have witnessed the transfer of concepts in quantum and nonlinear optics into the regime of hard X-rays. A particular role in this field has been taken by the ultrasharp resonances of Mössbauer isotopes as almost ideal two-level systems to explore quantum optical concepts. In the first part of my talk I will review recent developments in nuclear quantum optics and give a perspective on future applications at synchrotrons and X-ray lasers sources. Another boost in this field has been initiated by applying the quantum theory of optical coherence to the X-ray regime. We have shown recently that intensity correlations within incoherently scattered radiation can be used for imaging applications with radiation from free-electron lasers. The methods promises atomic-resolution images by using fluorescence radiation emitted from metal atoms in biomolecules, for example.