Seeded x-ray free-electron laser generating radiation with laser statistical properties
arXiv:1807.08177 · doi:10.1038/s41467-018-06743-8
Abstract
The invention of optical lasers led to a revolution in the field of optics and even to the creation of completely new fields of research such as quantum optics. The reason was their unique statistical and coherence properties. The newly emerging, short-wavelength free-electron lasers (FELs) are sources of very bright coherent extreme-ultraviolet (XUV) and x-ray radiation with pulse durations on the order of femtoseconds, and are presently considered to be laser sources at these energies. Most existing FELs are highly spatially coherent but in spite of their name, they behave statistically as chaotic sources. Here, we demonstrate experimentally, by combining Hanbury Brown and Twiss (HBT) interferometry with spectral measurements that the seeded XUV FERMI FEL-2 source does indeed behave statistically as a laser. The first steps have been taken towards exploiting the first-order coherence of FELs, and the present work opens the way to quantum optics experiments that strongly rely on high-order statistical properties of the radiation.
24 pages, 10 figures, 37 references
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- Spatial and temporal coherence properties of single free-electron laser pulses
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Cited by in corpus (17)
- An Ultra-Compact X-Ray Free-Electron Laser
- Atomic, molecular and optical physics applications of longitudinally coherent and narrow bandwidth Free-Electron Lasers
- High-resolution ptychographic imaging at a seeded free-electron laser source using OAM beams
- Quantum enhanced X-ray detection
- Ghost Imaging at an XUV Free-Electron Laser
- High temporal and spectral resolution of stimulated x-ray Raman signals with stochastic free-electron-laser pulses
- Enhanced Self-seeding with Ultra-short Electron Beams
- Quantum Nanophotonics with Energetic Particles:X-rays and Free Electrons
- High-resolution absorption measurements with free-electron lasers using ghost spectroscopy
- High-gain quantum free-electron laser: long-time dynamics and requirements
- Theoretical Analysis of Hanbury Brown and Twiss Interferometry at Soft X-ray Free-Electron Lasers
- Pairing superbunching with compounded non-linearity in a resonant transition
- FEL stochastic spectroscopy revealing silicon bond softening dynamics
- Multi-photon enhancement of the Schwinger pair production mechanism under strong FEL radiation
- Quantum state features of the FEL radiation from the occupation number statistics
- Tracking the Ultraviolet Photochemistry of Thiophenone During and Beyond the Initial Ultrafast Ring Opening
- Enhanced polarization transfer to the characteristic x-ray lines near the nonlinear Cooper minimum of two-photon ionization