Laser-dressed photoionization for the temporal characterization of attosecond pulses generated from plasma mirrors

L. Dakroub (1) , T. Sinyakova (1) , D. Cubaynes (1) , C. Bomme (2) , L. Chopineau (2) , G. Garcia (3) , O. Peyrusse (4) , F. Quéré (2, 5) , C. Bourassin-Bouchet (6) , A. Klisnick (7, 1)

1 ISMO - Institut des Sciences Moléculaires d'Orsay
2 LIDYL - Laboratoire Interactions, Dynamiques et Lasers (ex SPAM)
3 SSOLEIL - Synchrotron SOLEIL
4 LP3 - Laboratoire Lasers, Plasmas et Procédés photoniques
5 PHI - Physique à Haute Intensité
6 Laboratoire Charles Fabry / Optique XUV
7 ISMO - Institut des Sciences Moléculaires d'Orsay

We report on the implementation of a laser-dressed photoionization method aimed at measuring the temporal structure of high-order harmonics generated from plasma mirrors at the attosecond timescale. Using numerical simulations, we show that the infrared dressing pulse induces up-down asymmetry on the angular distribution of photoelectrons. Experimentally single-shot photoelectron spectra with angular resolution were successfully detected with a velocity-map imaging spectrometer. However, the impact of the infrared dressing field in the photoelectron spectra could not be observed. We discuss several issues that potentially hampered these observations and suggest corresponding setup improvements.

Domaines: Physique [physics]

L. Dakroub, T. Sinyakova, D. Cubaynes, C. Bomme, L. Chopineau, et al.. Laser-dressed photoionization for the temporal characterization of attosecond pulses generated from plasma mirrors. The European Physical Journal. Special Topics, 2023, 232 (13), pp.2055-2067. ⟨10.1140/epjs/s11734-023-00817-5⟩. ⟨hal-04256581⟩