Second and third harmonic generation from gold nanolayers: experiment versus theory L. Rodríguez-Suné, J. Trull, N. Akozbek, D. De Ceglia, M. A. Vincenti, M. Scalora and C. Cojocaru EPJ Web Conf., 255 (2021) 07003 Published online: 18 November 2021 DOI: 10.1051/epjconf/202125507003