We provide supporting dataset corresponding to the paper “Surface plasmon on Pd(110): an ab initio calculation”, by U. Muniain, R. Esteban, I. P. Chernov, J. Aizpurua and V. M. Silkin, published in Physical Review B (DOI: 10.1103/PhysRevB.103.045407). The dataset is organized in 12 binary files to extract the imaginary part of the noninteracting response function Xi0_{GG’}(q,w) (as determined by Eq. (3) in the article), for three particular q vectors in the Gamma-X direction: q = 0.0168 1/Å, q = 0.0840 1/Å and q = 0.4032 1/Å. For q = 0.0168 1/Å, the full set of data is divided into four files “Pd110_01_Ax”, where x = 1, 2, 3 and 4. We also include a FORTRAN program “Reading_Xi0_IM_01.f” that reads the response function from those four files for a range of energies, as determined in the FORTRAN program. This FORTRAN program can be used to handle the data, as stated in the program itself. For the other two q vectors, the data (four files) and the reading FORTRAN program are organized in the same way, where the number “01” in the files of the example above is replaced by “05” for q = 0.0840 1/Å and by “24” for q = 0.4032 1/Å., Peer reviewed

The dataset includes the numerical data presented in Phys. Rev. X 14, 021017 (2024), "Unified treatment of light emission by inelastic tunneling: interaction of electrons and photons beyond the gap", written by Unai Muniain, Ruben Esteban, Javier Aizpurua and Jean-Jacques Greffet (doi.org/10.1103/PhysRevX.14.021017). The dataset is organized into folders according to the explanation in the README file., Agence Nationale de la Recherche (ANR-22-CE24-0011); MCIN/AEI/10.13039/501100011033 and “ERDF A way of making Europe" (Grants No. PID2019–107432 GB-I00 and No. PID2022-139579NB-I00); Basque Government (Project No. IT 1526-22 for consolidated groups of the Basque University), Peer reviewed

The files contain the dataset of the figures in the article "Description of ultrastrong light-matter interaction through coupled harmonic oscillator models and their connection with cavity-QED Hamiltonians", written by Unai Muniain, Javier Aizpurua, Rainer Hillenbrand, Luis Martín-Moreno and Rubén Esteban. The article will be published in the journal Nanophotonics (DOI: 10.1515/nanoph-2024-0528), MICIU/AEI/10.13039/ 501100011033 and ERDF, EU (grants PID2022-139579NB-I0 and PID2021-123949OB-I00);, MICIU/AEI/10.13039/ 501100011033 (grants Grant CEX2020-001038-M, PID2020-115221GB-C41 and CEX2023-001286-S);, Basque Government (grant IT 1526-22 for consolidated groups of the Basque University);, Department of Economy of the Basque Government (project 4usmart Elkartek);, Government of Aragon (Project Q-MAD);, Peer reviewed