Spectral-phase interferometry for direct electric-field reconstruction applied to seeded extreme-ultraviolet free-electron lasers
Optics
2023-07-19 v1
Abstract
We present a setup for complete characterization of femtosecond pulses generated by seeded free-electron lasers (FEL's) in the extreme-ultraviolet spectral region. Two delayed and spectrally shifted replicas are produced and used for spectral phase interferometry for direct electric field reconstruction (SPIDER). We show that it can be achieved by a simple arrangement of the seed laser. Temporal shape and phase obtained in FEL simulations are well retrieved by the SPIDER reconstruction, allowing to foresee the implementation of this diagnostic on existing and future sources. This will be a significant step towards an experimental investigation and control of FEL spectral phase.
Keywords
Cite
@article{arxiv.1502.03638,
title = {Spectral-phase interferometry for direct electric-field reconstruction applied to seeded extreme-ultraviolet free-electron lasers},
author = {Benoît Mahieu and David Gauthier and Giovanni De Ninno and Hugo Dacasa and Magali Lozano and Jean-Philippe Rousseau and Philippe Zeitoun and David Garzella and Hamed Merdji},
journal= {arXiv preprint arXiv:1502.03638},
year = {2023}
}