Nanoscale Devices for Rectification of High Frequency Radiation from the Infrared through the Visible: A New Approach

Figure 11

Effect of tip radius on the rectification ratios. The calculations are done for: 𝜌=∞, that is, planar-planar junction, included as a reference (solid), (b) 𝜌=10 nm (dotted), (c) 𝜌=2 nm (dashed), (d) 𝜌=1 nm (dot-dashed), (e) 𝜌=0.5 nm (dot-dot dashed), and for the separation of 2 nm [25].