Dispersion properties of nonlinear bulk polaritons in uniaxial antiferromagnetic/nonmagnetic superlattices

Nonlinear Propagation of ElectromagneticWaves in Antiferromagnet

“…In this section, the main steps and results of deriving nonlinear magnetic susceptibilities of AFs will be presented in the rightangled coordinate system, or the Cartesian system. The detail mathmetical procedure can be found from our previous works (Wang & Fu, 2004;Zhou, et. al., 2009).…”

“…There also are two situations to be discussed. First，if the wavelenght  is much longer than the superlattice period L ( L   ), the superlattice behaves like an anisotropic bulk medium (Almeida & Mills,1988; nonlinear effective-medium theory (Wang & Fu, 2004), to solve effective susceptibilities of magnetic superlattices or multilayers. This method has a key point that the effective secondand third-order magnetizations come from the contribution of AF layers or …”

“…al. (Wang & Fu, 2004;Zhou, et. al., 2009), and were used to discuss the nonlinear polaritons of AF superlattices and the second-harmonic generation (SHG) of AF films (Wang & Li, 2005;Zhou & Wang, 2008), as well as transmission and reflection bi-stability (Bai, et.…”

High sum-frequency generation in dielectric/antiferromagnet/Ag sandwich structures

“…As an approximation, 𝐻 l (ω l ) may be considered as the signal waves in the AF film induced by the incident waves. [21,22] Because the SF magnetization and pump field in the film both have been given, it is easy to find the solution of Eq. (7).…”

Nonlinear infrared transmission through and reflection off antiferromagnetic films

“…In discussions on relevant subjects, the nonlinear magnetic susceptibilities comprise a base for investigating the nonlinear properties. From the nonlinear equations satisfied by alternating magnetizations in AFs, the nonlinear magnetic susceptibilities were obtained in different forms for various purposes [1][2][3][4]. Almeida and Mills [1] dealt with the bi-stability and multi-stability of transmission for circularly polarized infrared radiation normally incident upon AF films with the uniaxial anisotropy normal to the film surfaces, and they discussed the same subject for AF superlattices in another paper [2].…”