Figure 3

(a) 330 nm horizontal nanorod aloof 6-pixel map spectra average with laser off and on. Dashed lines in a and f correspond to the laser energy at ± 1.58 eV. (b) HAADF image of horizontal nanorod with aloof position indicated by green circle. (c–e) Horizontal nanorod maps of EEL, sEEG, and sEEL peak intensities, respectively. (f) 310 nm vertical nanorod aloof 6-pixel map spectra average with laser off and on. (g) HAADF image of vertical nanorod with aloof position indicated by green circle. (h–j) Vertical nanorod maps of EEL, sEEG, and sEEL peak intensities, respectively.