Measurement of the third-order nonlinear susceptibility of Ag nanoparticles in glass in a wide spectral rangeD. Faccio, P. Di Trapani, E. Borsella, F. Gonella, P. Mazzoldi and A. M. MalvezziEurophys. Lett., 43 2 (1998) 213-218DOI: https://doi.org/10.1209/epl/i1998-00342-y