Second and third harmonic generation from gold nanolayers: experiment versus theoryL. Rodríguez-Suné, J. Trull, N. Akozbek, D. De Ceglia, M. A. Vincenti, M. Scalora and C. CojocaruEPJ Web Conf., 255 (2021) 07003DOI: https://doi.org/10.1051/epjconf/202125507003