Fig. 7. Illustration of collective photothermal effects in plasmonics.
a STEM bright field image of a 1% Au/SiO2 sample used in refs. 9,28 for the plasmon-induced dissociation of H2 on Au. Reproduced from Supplementary information of ref. 28, with permission from the American Chemical Society, copyright 2014. b Calculated heat source density associated with a assuming an irradiance I=2.4 W/cm2, as in the original work. c Temperature distribution calculated using the Laplace matrix inversion (LMI) method104, assuming that only these three nanoparticles are illuminated with an irradiance I=2.4 W/cm2. d Temperature distribution using Eq. (19) of ref. 43, assuming macroscale illumination with an irradiance I=2.4 W/cm2 over a spot area of 1 cm2, featuring a perfectly uniform temperature, ~4 orders of magnitude higher than in c