Fig. 2
From: Gap plasmonic properties of NPOM structures composed of gold nanoparticles and thin films
Corresponds to the electric field value of the horizontal line (green line) in the middle of (a) Vertical GENP, (b) Horizontal GENP, (c) The electric field decay rate of 60 nm away from the horizontal surface of the GENP. (The arrows pointing to the left in Fig. 2(a) and (b) are the local electric field intensity on the surface of the nanoparticles. The arrow pointing downward is the local electric field intensity at the distance from the 60 nm on the surface of the nanoparticles.)
