Non-magnetic artificial SPP isolator based on parametric amplification

The invention discloses a non-magnetic artificial SPP isolator based on parametric amplification. The isolation structure is mainly composed of a metal ground layer on the bottom layer, a space layer dielectric substrate and a metal structure on the uppermost layer, wherein the metal structure is composed of an artificial SPP parameter amplifier loaded with a varactor, an artificial local SPP resonator and a passive artificial SPP waveguide structure. By regulating and controlling the dispersion behavior of the artificial SPP parametric amplifier unit structure loaded with the varactor, forward signal waves are amplified under the condition of phase matching, the amplified signal waves are coupled to a passive artificial SPP waveguide below through the artificial local SPP resonator, and then transmission of backward signal waves is isolated. Due to the advantages of easy integration and low loss of the non-magnetic artificial SPP isolator, the non-magnetic artificial SPP isolator has important application in