Figure 4
From: Largely Enhanced Saturable Absorption of a Complex of Plasmonic and Molecular-Like Au Nanocrystals

Measured power-dependent normalised transmittance of molecular-like and plasmonic AuNCs and the nanocomplex.
Blue line: SA process of molecular-like AuNCs. Green line: SA→RSA processes of plasmonic AuNCs. Red line: SA→SA processes of the coupled plasmonic and molecular-like AuNCs. Inset: Measured nonlinear parameters of the individual AuNCs and the nanocomplex.