Exploiting free-electron lasers for time-domain interferometry and quantum optics

Max Planck Quantum Matter Seminar

  • Date: Nov 10, 2022
  • Time: 04:00 PM - 05:00 PM (Local Time Germany)
  • Speaker: Simon Gerber
  • Paul Scherrer Institute, Switzerland
  • Location: CFEL (Bldg. 99)
  • Room: Seminar Room IV, O1.111
  • Host: Gregor Jotzu
Exploiting free-electron lasers for time-domain interferometry and quantum optics
Brilliant, ultrashort, and coherent X-ray free-electron laser pulses allow investigations of dynamics at the inherent time and length scale of atoms. However, missing are sequences of phase-locked X-ray pulses, desirable for time-domain correlation spectroscopies and coherent quantum control. In this seminar, I will present a scheme to generate sub-femtosecond, phase-locked X-ray pulse pairs with up to 100 fs delay. This enables time-domain interferometry, such as the X-ray analog of the ubiquitous Fourier transform infrared spectrometer or resonant inelastic X-ray scattering, and, more generally, all of nonlinear and quantum optics requiring coherent copies of beams. S. Reiche, G. Knopp, B. Pedrini, E. Prat, G. Aeppli & S. Gerber, PNAS 119, e2117906119 (2022).


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