(equation 14). To respect the MID IR regime (30 THz) however, the diode must have also a low resistance close to the nanoantenna resistance (to provide a good impedance matching antenna-diode and an efficient power transfer), it must pass a large current at low voltage, as consequence should have a large area. Currently this tread-off restricts the use of MIM diode [29]. In addition, parameters as metal work function (a difference in work functions between the metal junctions produces nonlinear effects, resulting in high-speed rectification), insulator electron affinity, and its thickness, are very important.  Figure 10 shows a typical MIM.