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. 2018 Jul 12;8:10499. doi: 10.1038/s41598-018-28909-6

Figure 2.

Figure 2

(a,b) Transient absorption spectra at a time delay increased from 0 to 18.5 ps for a pump wavelength of 800 and 400 nm, respectively. (c) Comparison between the TA spectra measured on the gold nanoparticles at a pump wavelength of 400 nm and a time delay of 1 ps (red) and 18.5 ps (black) and at a pump wavelength of 800 nm and a time delay of 18.5 ps (magenta, dashed). (d) Comparison between the TA spectra measured on gold nanoparticles at a pump wavelength of 800 nm (red) and 400 nm (blue) and on a gold film at a pump wavelength of 800 nm (black) and 400 nm (green).