Femtosecond X-Ray Free Electron Laser Pulse Duration Measurement from Spectral Correlation Function

Journal Article · Tue Apr 17 00:00:00 EDT 2012 · Published in Phys.Rev.ST Accel.Beams 15:030705,2012

DOI:https://doi.org/10.1103/PhysRevSTAB.15.030705· OSTI ID:1038714

Lutman, A. A

We present a novel method for measuring the duration of femtosecond x-ray pulses from self-amplified spontaneous emission free electron lasers by performing statistical analysis in the spectral domain. Analytical expressions of the spectral correlation function were derived in the linear regime to extract both the pulse duration and the spectrometer resolution. Numerical simulations confirmed that the method can be also used in the nonlinear regime. The method was demonstrated experimentally at the Linac Coherent Light Source by measuring pulse durations down to 13 fs FWHM.

• Research Organization: SLAC National Accelerator Laboratory (SLAC)
• Sponsoring Organization: US DOE Office of Science (DOE SC)
• DOE Contract Number: AC02-76SF00515
• OSTI ID: 1038714
• Report Number(s): SLAC-REPRINT-2012-029
• Journal Information: Published in Phys.Rev.ST Accel.Beams 15:030705,2012, Journal Name: Published in Phys.Rev.ST Accel.Beams 15:030705,2012 Journal Issue: 3 Vol. 15; ISSN 1098-4402
• Country of Publication: United States
• Language: English

Related Subjects

43 PARTICLE ACCELERATORS
ACCPHY
CORRELATION FUNCTIONS
FREE ELECTRON LASERS
LIGHT SOURCES
LINEAR ACCELERATORS
RESOLUTION
SPECTROMETERS