Second harmonic generation of magnetic and dielectric multilayers

Abstract

The second harmonic generation of antiferromagnetic and dielectric multilayers is analysed by using a conventional nonlinear optics approach and transfer matrix formalism. The theoretical modelling of the multilayers is configured in Voigt geometry in order to observe second harmonic transmission and reflection through the film system, with the assumption of weak nonlinearity and no depletion of incident waves. With these, some of the linear and second harmonic transmissions and reflections are calculated numerically and shown graphically.

Nonlinear Propagation of ElectromagneticWaves in Antiferromagnet

“…It is because that a plane EMW of incidence can be decomposed into two waves, or a TE wave with the electric field normal to the incident plane and a TM wave with the magnetic field transverse to this plane. Due to no coupling between magnetic moments in the film and the TM wave (Lim, 2002(Lim, , 2006Wang & Li, 2005;Bai, et. al., 2007), the incident TM wave does not excite the linear and SH magnetizations, so can be ignored.…”

“…Many investigations have been carried out on nonlinear guided and surface waves (Wang & Awai,1998;Almeida & Mills, 1987;Kahn, et. al., 1988;Wright & Stegeman, 1992;Boardman & Egan,1986), second-harmonic generation (Lim, 2002(Lim, , 2006Fiebig et. al, 1994Fiebig et.…”

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

“…The solution (9) indicates that the SF wave in the film also propagates in the incident plane and will radiate out from the film. Therefore, we use H a nz = T a n e −ik ny y e (ik nx x−iω n t) to present the magnetic field of the SF wave generated above the film and H b nz = T b n e ik ny y e (ik nx x−iω n t) to indicate the SF field below, with k ny determined by k 2 ny +k 2 nx = ε 0 (ω n /c) 2 .…”

“…In recent years, the nonlinearities of antiferromagnets (AFs) have been paid a great deal of attention, for example, the second-order harmonic generation and the optical bistability. [8][9][10][11] In addition, the resonant frequencies of typical AF materials are distributed over the far-infrared and millime-ter ranges, [12][13][14] so their nonlinearity is of practical interest in these ranges. THz technology for future communication and detection applications could be possibly developed.…”

Tunable Second Harmonic Generation in Antiferromagnetic Photonic Crystal with Graphene

“…For example, an AF layer was embedded in a one-dimensional PC, then SH outputs compared with the ones of the AF film can be enhanced several hundred times [29]. Lim reported the SH generation of AF and dielectric multilayers by using the conventional nonlinear optics approach and transfer matrix method [30]. Some other relative works also were made by the combined contributions of the magnetic-dipole and electric-dipole transitions [31,32].…”