Spectro-temporal shaping of seeded free-electron laser pulses

Abstract

We demonstrate the ability to control and shape the spectro-temporal content of extreme-ultraviolet (XUV) pulses produced by a seeded free-electron laser (FEL). The control over the spectro-temporal properties of XUV light was achieved by precisely manipulating the linear frequency chirp of the seed laser. Our results agree with existing theory, which allows retrieving the temporal properties (amplitude and phase) of the FEL pulse from measurements of the spectra as a function of the FEL operating parameters. Furthermore, we show the first direct evidence of the full temporal coherence of FEL light and generate Fourier limited pulses by fine-tuning the FEL temporal phase. The possibility to tailor the spectro-temporal content of intense short-wavelength pulses represents the first step towards efficient nonlinear optics in the XUV to X-ray spectral region and will enable precise manipulation of core-electron excitations using the methods of coherent quantum control.

5 pages, 3 figures

References in corpus (1)

• Coherent ultrafast core-hole correlation spectroscopy: x-ray analogues of multidimensional NMR

Cited by in corpus (15)

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• Strong-field quantum control in the extreme ultraviolet using pulse shaping
• High temporal and spectral resolution of stimulated x-ray Raman signals with stochastic free-electron-laser pulses
• Attosecond photoionization dynamics with stimulated core-valence transitions
• Attosecond pulse characterization with coherent Rydberg wavepackets
• Interferometry for full temporal reconstruction of laser-plasma accelerator-based seeded free electron lasers
• Deterministic strong-field quantum control
• High-Gain Harmonic Generation with temporally overlapping seed pulses and application to ultrafast spectroscopy
• High-resolution absorption measurements with free-electron lasers using ghost spectroscopy
• Improved stabilization scheme for extreme ultraviolet quantum interference experiments
• Ultra-high harmonic conversion of a seeded free-electron laser via harmonic optical klystron