Vol. 54, Issue 4, pp. 511-522 (2024)

Abstract

The spectrum behaviors of light waves on scattering from a novel kind of medium, i.e., the PT-symmetric semi-soft boundary medium, were discussed, and the dependence of the presentation of the far-zone scattered spectrum on the characteristics of the scattering medium was investigated. The results show that spectral shifts and spectral switches can be discovered in the scattered field, and the direction of spectral switch is closely related to the non-Hermitian parameter, the boundary characteristic, and the effective width of the scattering medium. These results will further enrich the scattering theory and may have some applications in the reconstruction of the structural information of scattering medium.