Theoretical and experimental studies of broadband phase-controlled attosecond mirrors

Zsolt Diveki (1) , Charles Bourassin-Bouchet (2) , Sébastien de Rossi (2) , Elisabeth English (1) , Evgueni Meltchakov (2) , Olivier Gobert (1) , Didier Guenot (1) , Bertrand Carre (1) , Pascal Salières (1) , Thierry Ruchon (1) , Franck Delmotte (2)

1 SPAM - Service des Photons, Atomes et Molécules
2 Laboratoire Charles Fabry / Optique XUV

We present procedures to develop and characterise chirped multilayer mirrors for attosecond pulses. The design procedure involves a simulated annealing optimisation algorithm to obtain a multilayer structure with the desired performances. The characterisation step requires the use of well-calibrated attosecond and synchrotron beam lines, allowing one to measure the amplitude and phase response of the mirror. We illustrate these approaches with a set of mirrors designed to have zero or negative dispersion. The remarkable agreement between theoretical and experimental performances validates this overall process, and demonstrates the capability of such mirrors to control the temporal profile of attosecond pulses. These tools and techniques for developing attosecond chirped mirrors will facilitate the generalisation of such components on attosecond experiments.

Domains: Physics [physics]; Physics [physics]; Optics [physics.optics]

Zsolt Diveki, Charles Bourassin-Bouchet, Sébastien de Rossi, Elisabeth English, Evgueni Meltchakov, et al.. Theoretical and experimental studies of broadband phase-controlled attosecond mirrors. Journal of Modern Optics, 2014, 61 (2), pp.122-131. ⟨hal-00954737⟩