Figure 2
(a) Two-dimensional X-ray diffraction image of single-layered bare gold nanocrystals on the substrate. The inner diffused scattering is from the amorphous silica glass structure. (b) Profiles of the Au 111 diffraction peak for single-layered bare gold nanocrystals before laser irradiation at −120 ps (dotted line) and after femtosecond laser irradiation at 180 ps (solid line). |