Statistical properties of a free-electron laser revealed by Hanbury Brown-Twiss interferometry

  title={Statistical properties of a free-electron laser revealed by Hanbury Brown-Twiss interferometry},
  author={Oleg Yu Gorobtsov and Giuseppe Mercurio and G{\"u}nter Brenner and Ulf Lorenz and Natalia Gerasimova and Ruslan P Kurta and Florian Hieke and Petr Skopintsev and Ivan A. Zaluzhnyy and Sergey Lazarev and Dmitry Dzhigaev and Max Rose and Andrej Singer and W. Wurth and Ivan A. Vartanyants},
  journal={Physical Review A},
We present a comprehensive experimental analysis of statistical properties of the self-amplified spontaneous emission (SASE) free-electron laser (FEL) FLASH at DESY in Hamburg by means of Hanbury Brown and Twiss (HBT) interferometry. The experiments were performed at the FEL wavelengths of 5.5 nm, 13.4 nm, and 20.8 nm. We determined the 2-nd order intensity correlation function for all wavelengths and different operation conditions of FLASH. In all experiments a high degree of spatial coherence… 

High spatial coherence and short pulse duration revealed by the Hanbury Brown and Twiss interferometry at the European XFEL

Second-order intensity interferometry was employed to study the spatial and temporal properties of the European X-ray Free-Electron Laser and showed an exceptionally high degree of spatial coherence up to 90% for the linear undulator tapering.


High degree of transverse field coherence is one of the unique properties of an FEL compared with a 3rd generation storage ring light source. As a result, the FEL advances the development of

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This analysis has demonstrated nearly full (80%) global spatial coherence of the XFEL pulses and an average pulse duration on the order of ten femtoseconds for the monochromatized beam, which is significantly shorter than expected from the electron bunch measurements.

Theoretical analysis of Hanbury Brown and Twiss interferometry at soft-x-ray free-electron lasers

In this work, we provide theoretical background for the analysis of second-order correlation functions in experiments performed at soft x-ray free-electron lasers (XFELs). Typically, soft x-ray

Seeded X-ray free-electron laser generating radiation with laser statistical properties

The authors demonstrate the second order coherence of a seeded FEL source that may be useful for measurements in quantum optics and for the design and operation of next generation FEL sources.

Spatial coherence measurements of the EUV emission from laser-plasma source based on xenon/helium gas puff target

In this paper, we present the first measurements of the partial spatial coherence of the EUV emission from xenon plasma in laser-plasma source, based on a double stream gas puff target. The Young

Frequency-, Time-, and Wavevector-Resolved Ultrafast Incoherent Diffraction of Noisy X-ray Pulses.

Frequency-tuned field correlation functions are used to modify the effective frequency gating and extract specific charge density contributions to the diffraction pattern while maintaining temporal resolution.

Overcoming the diffraction limit by multi-photon interference: a tutorial

  • J. Stöhr
  • Physics
    Advances in Optics and Photonics
  • 2019
The nature of light, extending from the optical to the x-ray regime, is reviewed from a diffraction point of view by comparing field-based statistical optics and photon-based quantum optics

On the van Cittert-Zernike theorem for intensity correlations and its applications.

A reciprocal relationship between the autocovariance of the light intensity in the source plane and in the far-field detector plane is presented in a form analogous to the classical van



Synchrotron Light Sources and Free-Electron Lasers

The first € price and the £ and $ price are net prices, subject to local VAT. Prices indicated with * include VAT for books; the €(D) includes 7% for Germany, the €(A) includes 10% for Austria.

X-Ray Diffraction

Interpretation of X-ray Powder Diffraction Patterns. By H. Lipson and H. Steeple. Pp. viii + 335 + 3 plates. (Mac-millan: London; St Martins Press: New York, May 1970.) £4.

Optical Coherence and Quantum Optics (Cambridge

  • 1995

Nature 180

  • 324
  • 1957

Nature 177

  • 27
  • 1956

I and J

Bachelor's thesis

The Fourier Transform and Its Applications

1 Introduction 2 Groundwork 3 Convolution 4 Notation for Some Useful Functions 5 The Impulse Symbol 6 The Basic Theorems 7 Obtaining Transforms 8 The Two Domains 9 Waveforms, Spectra, Filters and


The author of this thesis aimed at investigating the positive and negative effects of using social media through collecting the users' experiences and professionals' viewpoints, and identified other practical effects and aspects of social media.

New J

  • Phys. 12, 035004
  • 2010