The nonreciprocal of second harmonic generation with dielectric/antiferromagnetic/dielectric structure in Voigt geometry

Abstract

We calculate the second harmonic generation (SHG) from structures with dielectric/antiferromagnetic(AF)/dielectric in Voigt geometry. The calculations are performed with a nonlinear transfer matrix method and examples of nonreciprocal SHG are given. In particular, we study the nonreciprocal SHG in four different configurations when the direction of an applied magnetic field and the order of dielectric films are reversed. The nonreciprocal SHG can be realized in a resonance zone of AF, including THz frequency range. The increasing of the angle of incidence wave can enhance the effect of nonreciprocal SHG. In terms of applications, AF may be of interest in signal processing in the THz.