Dielectric Screening in Electromagnetic Dressing of Semiconductors

These datasets contain experimental time-, polarization- and angle-resolved photoemission spectroscopy (trARPES) measurements on GeS, SnS and 2H-WSe₂. They support the findings reported in the manuscript: Courtade et al., Dielectric Screening in Electromagnetic Dressing of Semiconductors, Physical Review B 113, 235430 (2026). ----------------------------------------------- We acknowledge the financial support of the IdEx University of Bordeaux/Grand Research Program "GPR LIGHT". This work was supported by state funding from the ANR under the France 2030 program, with reference ANR-23-EXLU-0004, PEPR LUMA TORNADO. We acknowledge support from ERC Starting Grant ERC-2022-STG No.101076639, Quantum Matter Bordeaux, AAP CNRS Tremplin, and AAP SMR from Université de Bordeaux. S.F. acknowledges funding from the European Union’s Horizon Europe research and innovation programme under the Marie Skłodowska-Curie 2024 Postdoctoral Fellowship No 101198277 (TopQMat). Q.C. acknowledges funding from the TERAQUANTUM project of the Région Nouvelle-Aquitaine. Funded by the European Union. U.D. acknowledges funding from the European Union’s Horizon Europe research and innovation programme under the Marie Skłodowska-Curie grant No HORIZON-MSCA-2023-DN-01 101169225 - SPARKLE. Views and opinions expressed are however those of the author(s) only and do not necessarily reflect those of the European Union. Neither the European Union nor the granting authority can be held responsible for them.