Figure 2

Experimental 3D images of (a) GNP, (b) SNP, and (c) GNR under the EDF system. a(i), b(i), and c(i) show the 3D profiles of GNP, SNP, and GNR. a(ii), b(ii), and c(ii) show the xy projection at the focal plane of GNP, SNP, and GNR. a(iii), b(iii), and c(iii) show the xz projection of GNP, SNP, and GNR. a(iv), b(iv), and c(iv) show the yz projection of GNP, SNP, and GNR. a(v), b(v), and c(v) show the FWHM in the lateral dimension of GNP, SNP, and GNR. a(vi), b(vi), and c(vi) show the FWHM in the axial dimension of GNP, SNP, and GNR.